No man, it's not stupid at all. She just needs to know that you love her more than anything else in the World. That without her you wouldn't want to wake up.
You aren't being stupid, but you can't be too sure if you are pushing her away or not. If you think you are, and she tells you that you aren't; then I suggest you continue as normal. You can't be in the wrong if you had no idea you were pushing her away. By telling you that you aren't, when you are is a lie. If she does that, she is misleading you. It's not entirely your fault for being too paranoid or whatever. Show her your feelings, and talk to her about what is on your mind and everything. Trust me man, sensitivity isn't a bad thing in a man