So my whole life I've had this where I barely last 1 minute with a girl when doing things like PIV or blowjobs, and personally, it doesn't really bother me that much because I can enjoy other things like foreplay etc. But, all of the partners I've had have had a problem with it.

out of the last 3 girlfriends I've had, one of them cheated on me for half a year before I found out and I ended the relationship after i found out. the second one was never satisfied and left after a couple of months because of it but I was grateful that she was transparent about it and the breakup wasn't any drama. However, the third one made a huge deal out of it because she said most of her partners lasted at least 10 minutes and said I was doing it on purpose.

What I'm really asking out of this post is advice and hopefully validation. what do you think about this? I'm a very giving person mostly and I try to be understanding, I just don't want to have to think that I'll have to do exercises regularly just to match my partner's stamina or take medicine or undergo some form or surgery for it. Or am i being unreasonable? Let me know thanks :)