Every Single Time...

So I met this guy from South Africa, and he is probably one of the sweetest guys I've ever met. We've only known each other for a really really short time, but it feels like we've known each other for a while. And believe me whenever I say a REALLY short time. He told me that he really likes me, and I really like him too. Though here's the thing, every time when a guy tells me that they like me, I start pushing them away. No matter how sweet or gorgeous they may be. I've been hurt a lot in the past so for some reason it just feels weird to have someone who thinks the world of me. I don't want to push him away. I made that mistake last year with my ex-boyfriend and I regret it horribly. I don't want to make that same mistake, though I don't know how to stop myself from wanting to push people away. It seems like I keep the bad people in my life and push the good ones out. And I don't want to do that anymore. Especially with this one. He's just so awkwardly adorably sweet. I just don't know what to do...