my boyfriend is getting intrusive thoughts about breaking up with me

hey guys so i just really need some advice about whether or not i should be reacting differently to the situation that happened today. so, today i looked up my name on his messages because he said i could, and there was a text to his bestfriend saying “i keep getting intrusive thoughts about breaking up with (my name)” his friend asked him how long he had been feeling that way and he said 2 days to that day, so july 1st to july 3rd. my stomach instantly dropped and he started frantically trying to explain and say sorry. he said he’s always had bad intrusive thoughts and he really hated it, and he would get those specific ones every hour or a few hours, but theyd stop when we were talking. he started crying and asked me if i was going to break up with him, and i obviously said no, but i really dont know how to react. i know you cant control intrusive thoughts, and he said they stopped that day and he only didnt tell me because he didnt want to upset me, which i understand as i am extremely sensitive, but i feel like he was trying to tell me by allowing me to search up my name in his messages. for some background information, he has clinical deposition and is on antidepressants, im his first real relationship and we’ve been together for about four months. hes been acting normal, but ive been getting off vibes from him for the past few weeks. not like hes acting different or anything really on his part, more so something weird coming from me. also, i left for a trip late june and wont be seeing him until august, and his friend suggested he could be feeling “limited in the relationship”. im really worried i did something wrong, and i told him that im not mad at him or anything and i texted him a long ass paragraph reassuring that it didnt change my view on him and that i understood he cant control it, but i just want to know if anyone else has had this happen to them and/or what i should do???