Maybe you should try posting more often. If someone doesn't post very much, I rarely follow them, unless they've just become a good friend through a group or private conversation.
I'll give you my perspective on it ..... for whatever it's worth . Most guys are on here to look at the "nekkid women " .... so they have no interest in following anyone else. The "nekkid women " want as many followers( not all of them , but a good percentage) as they can get and don't wanna follow you back because that would be too many people on their feed to keep up with. I may be completely wrong .... but that's been my experience so far.