HeLLLLLLLLLLLLLLLLLLLPPPPPPPPP…

You didn't say how old you or the girl are. If you are both underage then having the Mother upset with you is a huge problem. Wait until things calm down. If the Mother is angry at you, you may no chance. But if you convince the Mother you are ok...and you take things slow, maybe she will let you see her.