Oh boy.
Yah Me and Not Getting Married yet!!
This sort of situation is so common. Without being a total bitch: did you put on weight or something? Feel unattractive, need a boost?
At least go for a guy with some money to throw around.

A tow truck driver who is paying for a kid n' wife?!
I think you're just being lazy, frankly. In all respects.
Just be honest with yourself and be a grown up already.