Adding people on fb you had a crush on before a relationship

My ex was controlling, he made me stop being friends with people who he thought liked me. Well one of them did, and i liked him.

So...we liked eachother, but i was on the fence about him because around the time I wanted to start dating he turned into a party animal (we just graduated). Hes a sweet heart but im not big into partying. And I remeber we had a conversation right before i started dating the now ex and the guy basically said he liked me but "im no bodys second choice" or something like that.

Well at the time i was already to far deep with the ex and the guy i liked was off partying.

I just got free of that year long relationship in September. Anyway my question is; is it weird to add a crush back on fb after deleting them while you were in a relationship ?