What if we are both married but her spouse is an asshole to her and mine can't be trusted if I'm not around?

Anonymous
My wife took off with another guy 6 years ago
and I found her hidden fb and dirty messages to another guy but I took her back just to get out of jail a year ago just to find that an acquaintance of mine was comfortable enough to just go into the kitchen and get food and also I discovered that my wife and him had plans to go in a secret camping trip that I said I wasn't going to (it was a work thing) and they both denied it but the wife had to admit it because I could tell her exactly what they had said and she said she was just talking and wasn't really going... amd this was 2 months ago.
Anyway I got a new partner at work and she is an amazing woman I might add, but she says she is happily married but she is always telling me what an asshole her husband is and he gets mad and calls her names and shit that she doesn't deserve, but she says he is an asshole buy has a good heart?
In a lot of ways he sounds a lot like my wife as in its okay for them to call 7s at work 50 times a day but call them and they throw fits... hypocrisy, they both are always looking to point the finger and everything is always someone else's fault... the list goes on.
The more I work with her though the more I don't want to go home at the end of the day and I just think about my partner at work when I get home until the next day when I go to work... for real this girl makes me want to be a better person... but I don't know if she is or would even be into me? And/or don't know if I should even attempt to end two marriages for a relationship that I want to happen.
I know I wouldn't be a dick to her all the time and belittle her and would treat her a lot better and I am happy every morning when I see her face... I like her smile and I find her crooked teeth she complains about to be cute as fuck and like her positive attitude and her and goofy giggles, she has goals and I guess I just wondered what should I do? Just listen to her vent or start saying things I would never and compliments, go 4 it?
What if we are both married but her spouse is an asshole to her and mine cant be trusted if Im not around?
Updates
+1 y
I got y'all and thanks for the feedback and I agree with it all, I don't want to cheat on her because I don't want to be like her for real and yeah I don't wanna deal with the drama so I'm just gonna suppress these feelings for this other female because she is happy and I don't want to put that stress on her because I actually care about her and wish her all the happiness in the world because she deserves it
What if we are both married but her spouse is an asshole to her and mine can't be trusted if I'm not around?
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