I married my very close friend XBF.....I am one of those girls not justifiying my situation but I met him a long time ago and I was with someone else. she cheated on him yadda yadda and then 2 years later he and I got together...

Very hard as the situation you described there has been breach of trust etc... you r friend probably feels very betrayed...
She would do well to not speak to either of them, as it can become very toxic.