Help....

My boyfriend expects me to be like his friends' gf ... She's so pretty and full of it 
Anyways. I'm losing interest everyday, this is bad I don't know what to do ... I love him to death but it's a wierd kind of love... I keep thinking about my ex who was my first best friend and for 6 years we knew each other. It's been 2 years but I'm still dying. I hate being such a bitch to my current boyfriend but I do feel like sometimes I'm putting more effort in. Idk.