sorry to hear that.I agree with you, what a stupid conclusion to make. This couple does need help, they are much to young to already be in this situation.
I think you both would benefit with some consuling to get the real issues out. My wife says that some times sex hurts but she had an operation down there and she is in her fifties so no comparison.
i've posted before that i used to get vaginismus.
sex used to be very painful.
and not because i was shagging around or had the clap.
some girls with fibroids or cervical erosion suffer painful sex.
women's bits are complicated and there are lots of things that can go wrong.
must be tough for both of you.