So my boyfriend had a boner a few weeks ago (caused by him walking into my bedroom wail I was getting changed) and im still a vergin. I felt bad because I wasn't brave enough to help him (have sex) and im worried I might loose the man I love if I can't help him every once in a while. And I did brake my hymen during gym class not that long ago but I've been told it still hurts...so im asking if theres a non painful way to have sex? Or if after your hymen being broken dose it still hurt or was those all myths?
If he really cares about you and loves you then he will stay with you but if you are thinking that you need to hate sex with him to keep him then he can't feel the same way about you. If he walked in on you changing an hot a boner from it then that's his problem not yours it's not as though you encouraged it to happen, your first time should be special as its something your always remember and the more special it is then more your enjoy it.
If you are fully relaxed and carried away in the moment there is less chance of feeling any pain as your vagina muscles will be relaxed lubricated and there for ready to accommodate a penis and if he is also thoughtful he won't be in a rush to push his penis right inside in one go but will take his time.
By what you say I'm guessing that your under 16 still? Have you though about using any kind of contraception and what the consequences are if the condom was to break? Probably not.
If you feel that you need to help your boyfriend when he gets a boner that you have caused and not from him walking in on you then just give him a hand job or oral and no more save the rest until your older and have learnt to enjoy the joys of mutual masturbation.