My boyfriend is slowly trying to show me he wants to break up?

[Louise]

Well my bf of 19 and i of 17, have been dating for almost two months, and everything has always been good! We don't go to the same school but we always see each other during the weekends. And this week during spring break, my parents were out of town for a few days.. so he came over. We had it all planned, and he slept in my bed, but we didn't have sex because we are both vrgins we cuddled and everything was going so good, i felt like i loved him even more.. but the next day he got calls from his mum saying he had to go back home because she needed him at work, so he left the next day in the morning, and he texted me later that day saying he couldn't be back because he still was and had to help his mum at work, and i believe him. And we usually text everyday, even it's only goodnight or goodmorning, but we text.. and the days passed and he had left friday morning , and it was sunday afternoon..and so i decided to text him then, because i thought he might take some time off and he always credit on his phone so why wouldnt he just say hi, or reply.. and i just didn't think about it, and i told myself whatever but monday i saw he posted pictures on instagram.. and one of the hashtags was holland..and i remember he wanted to go there, but so what, does that mean he can't text me? to say he's alive at least? so i went on fb, and wrote him an inbox yesterday at like 9pm and asked if he was ok/alive.. and he hasn't replied.. and i know he's been on since, because it says x hours on the chat bar.. it's reallyy upsetting me.. whether he's ignoring me or breaking up with me, he should have the guts to at least reply with i don't want to see you, or leave me alone, and i'd get it, but now my head is going crazy, and i have been crying too.. did something happen in holland, or did i do something? I don't think I did, i mean i text him back at all times, i've open up to him about crazy confidential things and so as he, and we told each other we'd be there when we needed each other.. and that our relationship was honest and not based on lies or antyhing especially since he was cheated by all his previous gf's.. I really don't know what to do.. I'm just wondering what could be going on in his head..
thank you! xx
LF