He's distant

I really need advice. We met 11 months ago and we started dating really fast. About a month into our relationship he was being distant and I kept trying to talk to him and he told me he just doesn't have feelings for me yet. And after two months I opened up to him about my previous relationship and I told him I was scared to fall in love again because of how badly I was hurt. Then he dropped me off at home and told me he loves me. And I said it back because I really did. He's such a great guy. Then I left for the summer to visit my family and he was upset and so was I. Then I ended up getting stuck there for about 8 months. I came back here in January. We didn't break up the whole time I was there. And he would send freaky texts about what he was going to do when I got back. And here I am and we barely have sex now. When I first got back we went on dates and shit. And now he barely wants to lay in bed and watch a movie with me. I've been staying with him since I've been back. And on top of that my sister just past away and he's not even there to comfort me and that really bothers me. I cried to him about all this and he told me he's more focused on him basically. And it's like why would he try so hard to get me back here and act like this. He payed off my traffic tickets ($500 btw) and used his dad's flight miles to fly me here. Even though I had better opportunities out there I still came because I love him and he promised me so much. And it's all empty promises. I really don't know what to do.