I have a complex about my looks.

I have a complex now that I found out that my gf says I'm ugly with a broken tooth and all. I haven't smiled in pictures in over 2 decades because it's my front tooth I lost in an automobile accident . When I see guys with broken teeth the first thing I think is their a crackhead or something . Please help me. I can't get it out of my head that she notices that about me.