A Snake's Bite Can be Full of Venom

This is a about a girl who is a fusion named Roxy. There is two halves of her. The first is a demon named Len she is very upbeat and happy but very flirty. She takes over the most. The second half is a very shy human girl named Lily she is bipolar. She mostly lets Len take control. They have fused almost their entire lives. But what happens when they get a job and they meet two guys named Josh and Juan. Thet each fall for a different guy but will they stay fused together or split apart because of disagreement.