ex trouble

is it bad that everytime my phone goes off I wish it was him? i mean I broke up with him. why am I excited when he texts or waiting for it. what is wrong with me? I know we're not good for each other... the only reason we should even be talking is because we have a child together. but he doesn't text me for that reason, it's he needs a ride to work. or talking about what I did wrong in the relationship and being sarcastic. I still love him of course but I shouldn't even be thinking about him like I am....