This sounds familiar , i was in the same position as you and you alone can only make that decision . If she has been unfaithful to you and she lied or is still lying , then in my opinion it over . You will never trust the woman again and in some cases for good reason .
I took my wife back after she slept with somebody else , because i loved her so much and we have 2 beautiful boys . I wanted to keep a family and would do anything to try , 3 months later i found out she was ****in him again and again i took her back to make a go of our marraige and for the kids , 2 months later i find out she's at it again with the same guy . We split and 5 months later we got back together , she said its what she wanted and i was missing the kids to much . 6months after that we split , i could not trust her . She was going out with her friends and i lost all my faith in her .
By the way , i busted the guy up some and trashed his car . I see my kids at the weekends and i can do what i want . Divorse cost me 10,000 .
If any of this sounds familiar , get out fella . There are plentymore fish in the sea .

If none of this sounds familiar , forget it ...just venting