GF came into the relationship with lie, after lie.. she lied bouthaving kids then late confessed?

I continued with her.. she got pregnant and I married her.. I wasn't ready, but i felt bad for her and we got married. 2 years after being married I found out she was married when she was a teen and I guess her mother divorced her I dont know, but i went crazy and cheated on her, had a one night stand with a woman. Now wife and I have been married for 11 years and have 2 children together an she has her 2 oldest childres so in total there is 4 kids.. I confessed to her about the one night stand bc she found out she got HPV and it was during the time I cheated. And 2 years ago I got in contact with my ex and we spoke and my feelings for her arose again.I confessed to my wife about tht and let go my ex ShE WAS MARRIED TOO.. Ok now aftr 11 years w my wife i found out she went on a date with a guy and kisses while we were in a serious relationship BF and GF-- 12 years ago 1998..I cant seem to forgive her for not telling me and I told her its over with us.. that she deceived me.. she as apologized for not telling me.. but idk now. I cnt stand her right now, iwant her out of my house and dont want her anymore.. she is worth very little to me right now..