Ever been the "bigger" girlfriend?

Anonymous
My boyfriend has always dated small girls. I mean tiny girls. He's 6'1" 185 and his last girlfriend was like 5'2" and size zero. The girl before her was small too. I am 5'10" and 140 lbs, size 8 or sometimes a 10. I know I am not fat at all, but it still makes me insecure. Why the change? Don't guys usually have sort of a "type" and stick with it?
Updates
+1 y
I also forgot to mention that they've ALL been blonde and I'm brunette.
Ever been the "bigger" girlfriend?
17 Opinion