Could you be friends with this person?

So I know this girl. She's incredibly attractive. I've had a crush on her for a really long time, until I found out certain things about her...

First of all, she's married. Her husband is in jail. She also has a daughter with him.That shouldn't really bother anybody, but it's necessary for me to give you this background information. From my experiences with her, she seemed liked the sweetest, most likeable girl in the world. I went out with a bunch of friends one night and she was among the many friends I went out with. While we were hanging out, I overheard her talking to one of her girl friends about a guy she used to sleep with WHILE HER HUSBAND WAS IN JAIL. To me, at least, cheating on someone, especially when it's the person you married, is the absolute lowest thing a person can do while in a relationship. It just shows me how selfish, inconsiderate and untrustworthy of a person she is. I've never been given any other evidence that she isn't a good person besides this one fact, but honestly, it's almost enough for me to cut all ties with her, period. But I'm conflicted because before this, I thought she was really fun to be around, she's always been extremely nice to me and others, and she seemed like a good friend. I just can't get past what a disgusting decision that was, and I just wanted some other opinions. Should I stay friends with her or should I distance myself from her? It's just really hard for me to believe she's a trustworthy person to have as a friend anymore, and it's hard for me to believe she's a good person after hearing this.