It's kind of true though... it doesn't seem right for a man to leave a woman to fend for herself if she's having his baby. He's just as responsible for that as she is, right?
Well, we're talking Overly Attached Girlfriend here, so it's more likely than not that she had sex with him without HIS consent.
After all, who would willingly bind themselves to OAG?
This might sound sad, but I could be tempted. At least you'd know exactly what you're getting with her. She wouldn't be a difficult person to figure out how to relate to.