Hey friend, I'm really sorry to hear about what happened. I feel like what he did really must have stung, and my feelings would be really hurt as well.

Depending on the fight, it's possible that he just felt heated in the moment and had a knee-jerk reaction. It's completely possible that it had nothing to do with you, and that he felt really ashamed and regretful immediately after he shrugged you off, but had no idea what to do and just said nothing.

I imagine this isn't the first time you haven't felt good enough, and that's why this keeps resonating in your mind. Do you think this is a regular dynamic in your relationship? Where you're the one who's typically trying to seek affection, and he's the one who typically pulls away? Or do you think your insecurities may come elsewhere - maybe from even before this relationship began?

The easiest way to solve this would be to communicate with him - sit down with him, and be honest about how hurt you felt in that moment.

"Hey X, remember the other day when we were arguing? I tried to give you a hug, but you pushed me away. Can we talk about that? I was feeling vulnerable, and you really make me feel safe, so I was just looking for some comfort. I know you were just feeling heated, and I'm so glad that we've made up, but I keep thinking about how hurt I felt when you rejected me like that. Can you reassure me that you love me, and that you think I'm enough?"

Give him the opportunity to rise to the occasion and take care of you. It's possible he doesn't even know you're hurting right now! If you let him know, I think you'll feel a huge weight off your shoulders.

I'm giving this advice off of very little context, however. You're very young, and you mentioned that you live states away from your family. Moving out to be with an SO is awesome, but it can be really isolating. Do you have friends close by that you can rely on?