Something you’ve learned about yourself from a relationship or friendship ?

I (23f) have been dating my boyfriend for 13 months. Our relationship is good but it has taught me that I’ve exhibited some negative behaviors from the relationship that I had with my parents. For instance growing up when my mom was upset or annoyed at me she would snap at me or go off and afterwards give me a lot of affection. I realized that I was doing that at times with my boyfriend and it made me start therapy. It made me realize that I need to work on emotional regulation. How about yall, anything you learned about yourself from a relationship or friendship