this situation is kinda tricky and I don't really have anyone to talk about it so if u can give me some advice I would really appreciate it.

I went to a sleepover at my friend house with another buddy cause his parents were away from work. we have a really good time together watching movies, playing videogames, wrestling ecc. just boys stuff. At night we get to bed and we decided to all sleep in his parents bed so we can all be together for the night aswell. when lights and tv are off the other guy is already asleep while we kept playing around. I notice that he has a boner at one point and I think he realizes too. He left the bed and told me to follow him and ofc I did. We close the bedroom door and go downstairs in the living room. at that point he told me to get on my knees as he takes off his shorts and I gave him head. It was really fun. After around 1 hour we get back to the bedroom and go to sleep. the next morning were also fine.. we were joking and stuff so I thought it was just a moment between us. but the next days we haven't seen each other like usual so I started messaging him and basically he told me that he doesn't want to be my friend anymore cause I took advantage of him when he was horny that he needs to rethink about our friendship. I was just shocked cause I have no idea what I did wrong.. I definitely didn't try to get advantage of him or anything like that in fact he asked me to suck him so I'm very sad and confused.. idk what to do.

ps. I'm 15 and openly bisexual