Why People Stay in Relationships Too Long

I think the two things that I've noticed are people being too comfortable and it's really hard to break that comfort even if you know someone's not right for you. And holding on to the idea of what you thought the beginning of the relationship was. In my head if that was your best time, if you aren't excited about the person you're with right now, who they are, that is off to me. But why are you going to like hope they come back to this person or you like get these butterflies again? Why fight for something that probably wasn't actually ever there? You just were romanticizing the beginning of a relationship and now this is what it really is. If