My friends with benefits is pushing me away. Why? What did I do now?

confusedwoman_
I have a distant friend who I met in dollege last year. We went out on a date last month. I like him and he likes me too. But a serious relationship was not an option for both of us since we're both trying to establish a good career and he was trying to get settled in our city. Before we hooked up, he told me that he likes me and I was getting the feeling that he didn't want to do it with me. But we still ended hooking up. After the first hook up, I got caught by my parents. My parents were really mad and disappointed at me and the situation got out of control. He was still nice to me after that and he offered me help and advice and he listened to me the whole time. Then, I let things cool down at home for about a week or two. Then I asked him if I could come over to his place to discuss things with him and apologize to him. He agreed. So I came over, discussed the stuff that happened and gave him my sincerest apology. At that point I really wanted to continue where we both left off since I really enjoyed it. He accepted my apology and I asked him if we could do it again. He said he likes me and and he respects me but he was hesitant to do it again. But after much discussion and seduction, we ended hooking up again. Honestly, that was the best time ever and at that point I wanted to do it again and he seemed willing to do it again. And the best part was we made a promise to each other that we won't do it with anyone but to each other. The next day, i asked him if was still mad. He said no and told me to just forget everything. I thought everything was going fine until the next day. I asked if he wanted to do it that day. I got no reply. few hours later, I asked him what's wrong and he said he's flying back to his home country early next day and he has no time for me and he'll talk to me in a month when he's back. I doubt he flew back. Coz he's been replying to our friends on Facebook constantly. I'm bothered. why did he lie to me? what did i do wrong? im hurt
My friends with benefits is pushing me away. Why? What did I do now?
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