Every point you make here is legit! I would like to add another that I see very often and experienced as well. It is this: Men put a lot of effort into a relationship at the beginning, but often get lazy about a year in. I have only had a few serious relationships in my life, but this is a tendency that has been pervasive for me and other women I kno. It has deterred me from wanting to ever marry again, to be sure.