Bill X Reader X Will Nothing Will Seperate Us Apart

Its about a girl named (y/n) who lives with the family pines for the summer and she is a girl that likes to be helpful girl but she also dangerous to be with because ford had invited a machine that could make people have power and he used (y/n) as a test experiment because she wanted to be one and suddenly when his invention goes all wrong (y/n) start to feel something weird but she is still in her human form but one thing change her she was evil and nice she also had a power not jet to know what is it. One month
later (y/n) had left fords lab and was able to go out side and when she did,she went to explore the forest to find mable and dipper and the others to find out what happened to them as she goes deeper to the forest but ends up sleeping and meets someone that appears front of her and its will, then bill comes along they saw (y/n) for days and...well ever since (y/n) has been with will and bill cipher they been good friends but will and bill start to develop a love feeling for (y/n) and so did she but something happened with (y/n) she starts to get out of control and her memory fades bit what happens when she loses her mind. Will she ever be the same person or will she be like bill who once try to destroy the world and become evil for ever. How is bill and will going to help her. Will dipper and mable and the rest trust both demons abd unite together to help (y/n).