Romance is so boring and since 50% of marriages end in divorce and the man getting screwed big time, to be avoided. Anyway, women are unlovable these days as most of them are full of bad attitudes towards men.
Your point is? The romance genre and individual romance plots are there for people who do care about them. Perhaps like a fantasy, people wish the stuff worked so well in real life. Or, maybe they just enjoy watching these plots unfold. If anything, the fact that relationships end badly so often is the reason these genres are so appreciated. Like escapism or something.