I kinda realised this when I broke up with ABF last year, and wound up in a FWB . . . I realised I was just a booty call when "friend" was consistently walking me to the door a few mins before 2 hours were up each time, and once we went to the kitchen afterwards because he was hungry, and he fixed a plate of dinner for himself and sat down and started to eat.
Wake up call from the Universe!