Ok so I'm gonna yap about all my selfships that are relevant here because I can.
Has there ever been a time where you or your F/O have had to save the other? What was it from and what became of it?
Ok so when it comes to saving and being saved these guys are what come to mind:
DaiAng - While technically not from some kind of disaster, Daiki still saved Angela from being stuck in her world when he unenthusiastically said yes to her begging him to let her join him when going to other worlds so she wouldn't have to be forced to marry someone else. In the end, they became like a real married couple.
JeramIssa - When Issa tries to defect from the Uchu Jesters and ends up on the brink of death because of it, Jeramie and the others rush her to Ishabana to stabilize her and keep her from dying (somewhere along the way I can see there being a funny moment where Gira's like "We can't let her die, she has so much more to live for D:" and the others, especially Rita going "We can't let her die, she needs to serve time." Right afterwards). After she does eventually wake up and serve time in Gokkan, the two of them get married in the end.
Bakuline - Well, the most obvious moment I can think of is Baku saving Praline from burning alive in her own dream, which leads to her coming back to the Zeztz squad after being distant for a while. Since the show is still ongoing as of me writing this I wanna say that there are most likely moments where Praline also saves Baku.
JoMiru - These two have definitely saved each other during fights against the Zangyack I'm gonna be honest. This would get them to fight together pretty often with them having their backs against the other's. Since I'm not TOO familiar with a lot of stuff in this season I'm gonna refrain from going into detail until I finally get familiar enough with it all aside from stuff that I've been spoiled with online lol.
GenBea - After arriving on Earth from planet Bureki and reuniting with Genba, Beatrice has been saved a few times from Hashiliens when targeted by them. In the manga where they go back to planet Bureki to save it from the Hashiliens Beatrice returns the favour by helping the Boonboomgers fight. Since they're engaged, I feel like this would bring them closer somehow. I know this is super cheezy but I don't care.
Aaand that's it (for now) LOL