Side piece had better kitty than expected and now I’m hooked

She gives me so many mixed signals probably bc we are both in a relationship but I originally hooked up with her as revenge but her pink panther was so good I keep going back for more and we pretend like nothing happens bc we are always drunk wen it happens. she doing this whole push and pull thing. For example this weekend She was fighting with her man so she called her ex (who she still in love) with to smoke and take her home right in my face (I was with my gf) so I couldn’t say anything. but then she ditches him not even 10 mins later and let’s me hit damn near the whole night (my gf knocked out as soon as her sister was gone)we used to be enemies because she would get involved when me and her sister argue but ever since I came home from prison we been best friends idk wat to do I’m deep behind enemy lines and I feel like there’s more work to be done