I married my girlfriend despite these same warning signs. It only got worse and fast.  Thought I could change her and spent several years trying only to learn you cannot change someone.  By then there are kids and other attachments and you face the choice of staying and finding sexual satisfaction elsewhere, staying and becoming a eunuch or divorcing and turning your life upside down. I took the first route via hobbying.  It has worked out fine but I wish I had found a partner who was more compatible sexually as it would be nice not to have a split life.