Help me with these Mixed Signals?!?

Basically I have a boyfriend of 2 years who loves me to bits and I literally am his world. The thing is he's just not me... and I don't think I love him any more, well in that way. I'm scared to break up with him as I've put him through so much sh*t and gone on breaks with him and I think everyone is just going to get fed up with me being fickle because people push me into making a decision but to be honest when we don't talk or see each other I don't miss him or anything. I also have a friend called Pete, we've known each other since we were 2 and he is my brothers best friend and used to be mine. I say USED as he was until I developed feeling for him and told him so (ever since he has given my a wide birth and completely given me the cold shoulder?!). We've kissed a few times and arranged to meet up which never happened. When I told him how I felt he said he was very flattered and all but he didn't feel the same way BUT he said I needed to dump my boyfriend?! The next day we both went to a BBQ with a big group of friends we have and he was all happy and loud until me and his sister started talking about hot boys. He soon shut up and went silent and grumpy looking. The thing is I've been trying to get over him for a year or so now and I thought I had until he mentioned this girl called Laura who he liked but apparently doesn't any more and when he snuggled with my friend at camping! Help me please x Wtf is Pete doing? Especially messing with me and then chopping and changing his mind.. and how to end it with boyfriend? and should I?