A's Dc1 had put a foreign object in their nose. Dc2 felt ignored while A was trying to get it out, and to get attention, put a foreign object inside their own nose too. A went to A&E with Dc1 & dc2, and as if that wasn't bad enough, fiancé wasn't there when they got back home. When fiancé did return, they stunk of perfume. A has had suspicions of cheating for a few weeks now, and is certain fiancé has cheated at this point. Fiancé has been tearful at the accusation, is denying it, and is refusing to hand over passwords because they think they deserve privacy. A has made it clear that the relationship is ending if fiancé doesn't admit things, share passwords and make an effort to change. However, even if they weren't together anymore they would still be living together as if they were, as it is not practical at all for A to leave the relationship for several years. What advice do you have for A, if any?