I am literally in love with my cousin

So im 12 and my 14 year old cousin lives with us because her sister beat her up bad. Anyways we havent really been that close since we live in different states. She came in and was living with us and i was so drawn to her. Anyway so im in the 6th grade and she is in the 8th so we dont see each other in school because i do school online. She was sleeping on my floor because our house is really small and i had the biggest room in the house. So one night i woke up, she was on my phone then she was on my laptop just browsing and i could see her wondering what she was doing. I walked up to her and told her to come under the blanket. She was confused and said why do i have to do that and i told her im scared and she told me to come under the blanket with her then she started rubbing my hair and touched my face and thats when it i realized that i loved her. I want to be with her so bad i cant stop thinking about her and she is so beautiful and pretty. I dont know what to do i dont want to ruin our relationship though. She is so nice and kind and shes really smart. I just want to be with her so bad and i know that its wrong becasue she is my cousin but i cant stop thinking about her.