Would you be friends with someone that sleeps with married men?

I quit being friends with her. Her family knew the man was married as well so did she. she had 4 kids on her own and neither were his. she still continuously went around this man family claiming to be his girlfriend, signing her name to paperwork saying she was married to him, and other things. she even threatened to send people to the wife house. She went around calling this man relatives her aunt, aunties, and uncles. I had to drop her because she didn’t respect the fact he is married and she continuously trying to tear them apart.
Would you be friends with someone that sleeps with married men?
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