Insurance help stat!

SO, a lady hit my truck while my now ex girlfriend was driving it, left the insurance info, now I have my truck back. The truck is REGISTERED in my name, but INSURED in hers.

Ex girl told me "you picked the truck up, now it's your problem"

Option 1 is call teh lady who hit the truck, ask for cash (it's a raggity ass dodge) and tell her to cancel the claim.

What else can I do? It's not insured in my name does anyone know if I'll have problems getting paid for it?

Yea the truck is titled and registered to me, and only insured to her. She tried to say the truck wasnt running right and not to take it back yet to hide the fact of the damage, and never called the lady about getting it fixed. Insurance company hasnt looked at it yet.