It must hurt if it is another failed relationship, especially if his girlfriend is a bully. Have a talk with him, try to understand how he feels. Maybe also explain diplomatically why you think she is not good for him. You might not like her, but clearly your dad does and therefore cannot be sensible enough about her. He might listen to you though. Being depressed about a breakup doesn't necessary mean being a pussy. Men have feelings too and are entitled to express them.

" I'm being raised by a teenage girl " . Man, that's so deep.

So a teenage girl raised by a teenage girl huh

Due to teenage pregnancy, many children are being raised by teenage girls.

Your dad needs to grow up he is still living my best friend he died your dad isn't dead he's still living unlike my friend

Just let him be depressed he just lost his girlfriend it's sad yes for you but his heart needs to heal

your dad and Nintendo 3DS kid about five posts up need to grow a set.

Now what's even worse? You're going to end up exactly like him

He's probably been spending his nights curled up in a ball, over-thinking and reminding himself of every little flaw, but you can help him. Just say 3 words,"You look pretty," nothing more, just"You look pretty."

Get him into bodybuilding. It should keep him busy and healthy, until he starts asking you for breast milk.