This guy didn't wish my a happy birthday?

Anonymous
This guy and I almost never text or anything, but we discussed our feelings once and he knows that, at least some time ago, I had a slight interest in him (I actually was in love with him, but I couldn't tell him) and I know he was kinda attracted to me too.
Today it's my birthday and I posted some Instagram stories. He saw them but didn't text me to wish me a happy birthday. What do you think about it? And what should I do? I mean, does it mean I should just let him go because he doesn't care about me?
This guy didn't wish my a happy birthday?
3 Opinion