Aside from the sadness/disappointment/self-deprecation induced tears, from canon we know that Bakugou is an angry crier, Kirishima a sympathetic crier and Kaminari a stress crier, which, when you really think about it, means that once one of them starts crying the possibility of all three of them ending up in tears is pretty high
Having dissociative amnesia is so weird because it’s not like normal forgetting where you’re kind of like “I think this happened but I don’t know the details”, it’s looking back at a period of your life and seeing absolutely nothing. There is nothing TO remember, it’s just like a big black pit where your childhood should be.
It’s okay if your pronoun preferences change. If you like one set of pronouns sometimes, but another set the rest of the time. Don’t ever let anyone tell you it’s too complicated - you are wonderful and your pronouns are great, and you deserve to be respected. Use whatever pronouns feel right for you at the time.