This scene in S7 E5 is so so important to the bridge between who Rick and Michonne were as people before each other and who Rick and Michonne are as individuals and a unit once they find and learn each other.
At this point in their journey they're at a crossroads. The Saviors have just murdered their friends and have put their community under a constant state of danger and strife. The very life and freedom they walked the extra 100 miles for is at risk.
Rick is willing to accept it. He's already lost so much and he can't see a way out that doesn't include more losses that he's not sure he can handle.
But Michonne is willing to fight. While she too has lost so much, she can't see a way forward that includes rolling over.
Rolling over like Mike (who cost her her son).
Or rolling over like Andrea (who cost her the trust and friendship she carefully opened herself up to).
So here, when Rick says that he's going to go find things to appease this force weighing on them, that he's using his time and energy and power to essentially surrender, they're at odds.
For Rick, this comes with self-doubt, self-consciousness, and embarrassment. Maybe he can't keep them safe.
For Michonne, this comes with self-doubt, fear, and hesitation. Maybe she'll lose everything again.
But it's important to note that they're at odds with the method, not at odds with each other.
Rick says that if you change your mind, you can join us. You can join me. (Please don't leave. Please don't doubt me. That's a pain I can't handle.)
For him, Negan's presence is the manifestation of all his internal doubts. And we've seen what happened before when those internal doubts were presented in human form (Shane x Lori).
Lori turned from him. She doubted him. She lost faith in him. She, for all intents and purposes, left him.
So when he sees Michonne's doubt and hesitations, he thinks it's happening again. That she's turning from him. That she's doubting him. That she's lost faith in him. That she'll leave him. That she's disgusted by his "weakness". That she's at odds with him because we know that he internalizes his decisions as a reflection of himself.
That she can't handle, accept, or love this side of him.
But Michonne isn't even focused on that. She's stuck on her way of doing things. Of not being able to trust anyone and needing to be the only person who can step up. She's trying to not lose Rick and Carl and the others the same way she lost her son. She's reverting to hyper-independence.
So when she shifts his peck on this cheek to kiss him fully, when she holds his face and looks into his eyes, it's her saying "I see you. I understand. And I still need to do this for myself." (I'm not at odds with you. I'm trying to prove myself wrong. I need to see it through.)
His "thank you" is for her wordless affirmation. For her grace. For her love. For her acceptance of what he thinks he needs to do and who he thinks he needs to be in this moment to keep them all safe.
And with this, the bridge between them is strengthened. The Rick who still struggles with the weight of leadership that's been thrust upon him and the Michonne who hasn't fully trusted this new world around her begin to settle. And when each comes back at the end of the day having played out their individual methods and seen the proof they need firsthand, they have a new understanding of what they're facing.
Because this time is different.
Rick didn't have her before and she didn't have him.
But now, they have each other. That's why she says that together they can defeat the Saviors. They need each other. His strength and hers. Different forms of strength made more powerful and amplified by the individual experiences they've had.
This is one of my favorite scenes of theirs and in my mind lays the foundation for how everything in TOWL played out, from his escape attempts to her being able to break through his trauma. Simple perfection.