i don’t think that it’s aggressive to block someone. your intentions behind it could make it aggressive tho. you just don’t want to give that person any permission to contact you after they hurt you and i feel like you wouldn’t block your ex best friend out of spite. some people block their exes bc they want revenge or some shit like that but i don’t think that’s what you want. when i block people i do it so i can heal especially if i know that they’re the kind of people to always contact me again after they fucked up once again and forced me to leave. it literally just means ‚i‘m done with xyc, i want to and deserve to heal and move on‘.