You okay?
In my opinion, the bigger proof that garvez is endgame and that they will be canon also on the screen, is the changing, or even better, the "evolution" of Penelope reaction to Luke asking her "you okay". I already mentioned it in my analysis of 16x10, but I will make a deeper evaluation. Luke asked Penelope about how is she: two times in episode 12x17, one in 13x3 (but like a joke, so I will not consider it), one in 14x3, one in 15x4 (even if in a different way), one in 16x1, one in 16x10.
-12x17
Luke stared at Pen crying for while, before coming in, and took another second before talking. He asked her just "Hey, you okay?". Penelope turned to him and turned her back so fast, clearly scared to see Luke in her place, while she was doing... something that can be most intimate than make love. She just said "Oh my God, oh my God". Then she wiped the tears and added "Yes. I'm... I'm fine". It was a lie. A white lie, but still. Luke knew it, so replied "Well, you don't seem fine". So she turned again, stood up, walked closer (but not enough, in his opinion) to him and said "Look. Really really really. I'm okay. Just go away, please?". Her voice, the way she looked at him... puppy eyes. Luke was so disappointed. He almost turned, but then stopped, shook his head, still looking at her, and closed the door. She was so surprised. Then he said "I know I may not be the someone you want to talk to, but I can't walk away with you like this.". She turned again, so he kept talking "Hey, I know you went to visit Reid. Is that what this is about?". Penelope finally answered him, shared her fears...
After the case, Luke went to Penelope office. He had something for her. Even in this occasion, he looked at her for a while, like he was contemplating, admiring her. He said "hey" and she replied "hey", then turned and noticed, realized that it was Luke. She asked him about Vermont, a stupid thing like his "I made Lasagna". Luke gave her the antistress, she smiled, a big big smile, he looked at her like he was hypnotized, like someone in love. Then he asked her "How are you doing?". Penelope seemed... surprised, confused. She replied "Go... good", not looking at him. Then Luke started his speech that became a declaration (If I ever do become).
-14x3
Luke went to Pen office for asking her a copy of the video where they saw the murder of one of the victims. Penelope replied that he didn't need to watch, she already did, many times. He asked exactly how many times, she replied "enough times" and then he asked her "Are you okay? You never really look at...", but she diminished the whole thing (the fact he knew perfectly the effect of this kind of stuff has on her), especially said that "no one has times for my sensitivities". But in fact was a lie, because there was (and still is) someone that always wanted to take care of her sensitivity. Luke.
-15x4
Luke joined Penelope, that was trying to find something about Elizabeth stalker. She was so anxious, nervous, gasped and typed so fast. Luke watched at her, worried, took a second (as always) and then stopped her, saying "Hey". She looked at him so terrified. Luke this time didn't just ask her how she is. He used another way that had the same meaning. "Stop for a second. I know you take our cases personally, ok, but not like this. Want to talk about it?”. She never came to him in difficult times, but he still wanted to be the someone, and in this occasion he decided to act like it. He knew she needed to talk, that there was something in store. He wanted to know the reason why she was so upset, but also wanted to make her feel better. And Penelope told him not only about her own stalker, but also something that she never told anyone.
-16x1
Penelope just closed the call with JJ and Rossi. Luke was, as always, worried for her, so he asked her "You okay?". She replied, with an angry tone "Yes. I'm fine". He thought that her reaction depended on the fact they all said to respect her decision to leave the BAU, but she replied that wasn't about it, then started to talk about Rossi.
-16x10
After Bayley funeral, Luke and Penelope were aside. He poured for her and himself two glasses of wine. Her thanks was a smile. Luke asked her "How are you doing?". She looked at him for almost a second, then, still with her not happy smile, said "Mmm". She thought about her answer. For once, for the first time, she really wondered his question. And she said just the truth. "I'm... mad, and I'm sad and I... Oh. I fell into patterns that I promised myself I wouldn't fall back into, but I did.". She totally opened with him. Soft voice and sad smile.
The evolution of Penelope reaction is clear: at the beginning she replied with a white lie, she didn't want his help, she considered him as an intruder (12x17). And even after their bond became stronger, she still didn't want to share her vulnerability with him, preferred to diminuished all and avoid his efforts (14x3). After years, she still tried to escape his attempt to help her, make her open up, then, she given up, but seemed not happy for it (15x4). It took a while to understand the value of what Luke made for her (and she thanked him for Elizabeth, not for herself). Again, after other years and even a (supposed) romantic date, she changed the subject, when Luke showed his concern (16x1). Then, after a lot of bad things, all together, she spontaneously opened up with him, because she finally let herself go with him (16x10). Without a "supposed and so not present" girlfriend like a barrier between them. When Tyler was hurt Luke was so good, so honest, that she had to do the same. And it's not a case that she finally answered him with only the truth after the "me and you" thing. This is a so important step, for Penelope. Maybe it's even most important that a first kiss. Because she never let someone in, never wanted the help of other, not even Morgan's. And Luke was the Newbie. But also so stubborn. So...
All my ramblings.















