Ladies what does it mean when your ex or 4/5 years ago tries following you on Instagram? Just wants to be nosey and snoop or what?

Why would I ask my ex why he’s trying to follow me? Weird don’t you think?

Also when we broke up even though I had a bf already he would text me and say that he misses me, and to let him pick me up so we can go eat, that he was going to give me a baby 🙄 and more shit. Dumb food knows I’m married now