Hang on, hang on. Why would a septate hymen stop her having sex, relationships, children? That's really not helping here.
'Septate hymen' isn't a diagnosis of a terrible disease, it's a variation on a hymen. Ff it doesn't break (like any other hymen..) or causes you too much discomfort or you simply don't want to worry about it, it is very simple and un-invasive to have it quickly (and usually painlessly) surgically corrected. The hymen itself has no nerve endings, as I recall, so even post-operatively it's not a painful or troublesome thing to have done; it's not like you have to be put to sleep and have your tummy cut open.