This is definitely something most women aren’t aware of, but as written above, it’s super common for men to end up with sexual dysfunctions when their partner has/had vaginismus. If my memory serves me right, over 60% of men are in that case.
In some men, only the THOUGHT they’re going to be able to penetrate is enough to give them a premature ejaculation. Others have issues getting an erection or it takes ages before they are able to ejaculate from penetration. It’s often an unexpected obstacle in the course: as one problem is solved, another one shows up.
PS To the admins: why not create a separate section on the forum for this? That might contribute in making this topic less awkward.