The Hypocrite in Me

What I hate is how I can easily become like the people I hated the most and I don't even realize it. I guess what made me think about this is me and Brad. I'm in love with him and happier than I have been in a long time but what happens one day if  I wake up and realize I want more than what I've got. I know I should be happy with what I have and I am but I just keep thinking what if. I can't promise him that I'm going to love him forever because in all honesty no one really knows that. He could wake up one day and realize the same thing. I say this because that's what happened in my last...well... whatever you want to call whatever that was. I often compared it to the movie 500 Days of Summer because of the quote in there when he says, "How do I know one day you're not just going to wake up and realize you don't love me anymore?" and she said, "I don't know, no one knows that." I realized then that it was the truth. I never pictured myself doing any of the things I want to do now. I never wanted a simple life, I never wanted so "settle down" so to speak but now that's changed. And if I can change that much in three months then, what if something changes me back. I don't want to give up on all my dreams but it feels like that's what I'm doing and I'm just hoping it's not a mistake. I'm just hoping that one day I don't wake up and realize that everything I gave up I regret. Ugh this makes no sense but then again welcome to my brain muahahaha.