Sorry but he sounds like a piece of shit. Tell him to stop jacking off as much. Masturbation lowers the sensitivity if his grip is too tight which it might be. That might help his problem with the condom (which really does not seem like a problem). He might just even purposely get soft so he can go in raw like some guys I've met. I know people who just cant ejaculate with the condom on but every single man I've been with has been able to get hard with it on.
If he had HPV before you guys had sex and you've been having sex for 2 months... I don't see how you wouldn't have HPV too. And you do need to be informed that you can also get the HPV vaccine even as a male. I suggest if you haven't gotten checked yet, get checked and if you're clean, get vaccinated. They only vaccinate females (at least in canada, not sure if anywhere else) to save money in order to prevent the spread of HPV but obviously in the homosexual male community, that doesn't do anything to protect you guys. If you're not clean but no symptoms are showing up, it can disappear but has a chance to end up like your boyfriend and get warts or even worse.
He has obviously lied to you about his ex wearing rings and jerking him off since he knows where those warts came from. I don't see how you're taking this lightly.
From all your other posts, to my knowledge, you're 16. Thats too young to deal with this. Also I noticed in another post you said you're having problems with him and hes in his 20's, dating for 5 months and you're convinced hes your fiance and are getting married... go so far as thinking about moving in with him after just 5 months of dating. Did you guys specifically talk about getting married yet? Don't you think you're going a bit too far? Just because a guy tells you they love you doesn't mean you should go on and marry them/have fantasies about marrying them and say shit like you'll move in with them after your schooling is done.
This guy has an entire reddit account dedicated to asking strangers for advice on your relationship. I'm not saying dump him because he contracted an STD and you found out after you got to know him. I'm saying this is an unhealthy relationship that contains a lot of cheating on each other and lying about where his genital warts came from and what they are. Lots of revenge and selfishness from your boyfriend. Lots of wanting it his way.