If it isnt obvious enough

Hi long story short my husband left me, after we separated i started seeing someone. I really really liked this guy and things where going okay i mean i was a total hot mess tbh. He moved a girl into his house she was only supposed to stay there for 4 days we are on month two now and i went over twice since she's been there and i refuse to go over there now he told me shes wearing his clothes and that he has to take her shopping honestly how did i become the other woman when i was there first. Im venting and frustrated 4 months waisted on someone that wasnt worth it i am divorced now i guess i dont need advice because i know i should just leave this man alone now because his actions speak louder than words so depression is going to be my next mood for the next three months.