If he initially liked me why would he follow my cousins but not me?

we never followed eachother on social media and I tried to but he didn’t accept it… but I noticed he followed one cousin who said she didn’t know him and my other cousin followed him after I told her I liked him and was trying to reach out but they follow eachother on all platforms almost

but this was years ago he is married and I’m curious

If he initially liked me why would he follow my cousins but not me?
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