in love with not another man .. but a woman ...

So I've been with my fiancé for only a year now .  He's abusive ,sneaky and a cheater : just recently I been talking to this female at my job who is in the same situation with her gf . We are planning to move out together her and I . It's only been one week since I started talking to her but I feel that she is legit and real . I crave her and do not want to have sex with my fiancé at all . What should I do ?