Why Have One When You Can Have Two? Or Four?

I've got a little bit of a hot topic issue today I wanted to talk about. My previous rant of a discussion book dealt with book shaming and today's topic peripherally deals with this. That topic? Love triangles/ship switching/multiple love interests. Listen. I get it. To an extent. I'm sure there are numerous books out there with love triangles gone wrong or brought about solely for drama and not legitimate character development. I'm not here to talk about those books. What I'm here to talk about is the rabid reaction and proverbial pitchforks that are enacted when *gasp* a character's feelings or circumstances change and she starts to become romantically involved with a man different from the one that was initially introduced. This...is a...bad thing...?