There are some "unwritten laws" when it comes to the "Bro code," and it all depends on your personal values and ethics.
Your long time friend, Antoine "Dice" McDyess worked for NYPD and was married with 3 kids while residing in Westchester County. "Dice" is a good brother, but he has one weakness and that happens to be...women.
Even prior to him being "on the job" Dice was constantly chasing after women and as one of your mutual friends put it "the crack of dawn" wasn't safe around Dice.
Which bring us to Aryana Mendez, who happened to be Freddie Mendez's niece and took over his apartment when he moved to Phoenix, Arizona. By your calculations, Dice must be at least 12 years older than Aryana and when you think back you can still remember her being the little girl who wanted you to sit at the table and attend the "tea parties" that she was having with her cousin Minerva (Freddie's daughter).
Dice told you that he was visiting the old neighborhood and noticed this good looking Latina staring at him and he was getting ready to make a move on her when she called his name. He was thinking was this some chick from his past that he used to mess with until she told him who she was.
He said they talked for awhile about old times, family and exchanged numbers. This lead to them "hanging out," and Aryana eventually became Dice's "side piece" (of course Dice didn't want Freddie or anyone to know about him and Aryana, except for you)
Now, you mentioned earlier that Dice had one weakness, but you've come to realize that at times that weakness causes him to lack "common sense" because he gave Aryana your number and told her that he was "hanging out" with you (he was using you as a cover to see other women, but wouldn't tell you that so now you don't know what to tell Aryana).
Aryana wanted more from Dice, even though she understood that he was married and she begin to call you and complain about the situation (his wife, and possibility that he had a third woman). You tried to stay neutral and suggested that she speak to Dice about what is going on, but Aryana sounds like she is feed up with Dice and is hinting that she might want to make a move on you to get back at him.