why didnt the guy who likes me follow me on instagram?

[Adrianna]

...my boyfriend and I were dating for half a year before we even became facebook friends. A year or so before we even decided to put our relationship status on there. (And that was just because people kept asking if we were in a relationship and stuff)

Him following you on twitter, instagram, facebook or whatever shouldn't give you a sign of whether or not he likes you. Look for signs in REALITY. How he talks to you, treats you, looks at you. Even if he doesn't follow you, doesn't mean he doesn't like you. Too many young people base relationship statuses in the real world on those in terms of social networks. It shouldn't mean a thing, darling.
Hope this helps!