Why is he doing thiss? I am so confussed! Someone please helpp mee!!!!?

Ok so me and my boyfriend were together for about a year. We broke up and now we are back together for about a week. On friday we went tot the movies and we had so much fun we were laughing and smiling and everything was great. During the movie he fingered me and told me that he loved me. That night when we were talking he said he loved me for me and not for sex. On saturday we hung out again and we had such a great time he was so happy. We made out in the bathroom and he fingered me again. He said he wished we could have sex but i told him we couldn't because he didn't have a condom. After that we were still ok having a great time. Then his ex girlfriend texted him and i got really mad about that he said he stopped texting her so i was fine after that but he was all weird the rest of the night. He started avoiding me and ignoring me and i was so confused. Last night when he IM-ed me he said that he was sure if he wanted to go out. He said that he was confused and had to think about us because he doesn't feel like he loves me all of the time. I am so confused! We had such a great weekend and now he is telling me this! Why is he being like this? What should I do? I love him so much and i don't want to break up. Please help!