Unfaithful girlfriend

This slut trains in my gym and according to her Instagram 'has a boyfriend'...what's rare because in the gym she always asks men for help and supports their ass all the time. She lets herself be grabbed and cheeked like nothing and always with a smile of a slut that gives her away. Already some guys from the gym have screwed her and the poor cuck boyfriend doesn't know anything. I always go at the same hour as her and ALWAYS without fail asks me for help to stretch or do squats, literally lets me put her on all fours and support her cock to help her 'stretch'. You can't imagine how many times she's left my cock so hard that I laughed in her face, you slut. Plus she throws comments like 'epa...your boyfriend woke up' or 'what happened? You got excited? Haha'. It drives me crazy how much of a slut she is and how she screws over the boyfriend without guilt. It's more, once I heard her tell a skinny guy who was supporting her 'ah buee, I wish my boyfriend had her like that!' And she was laughing her ass off, besides screwing over the boyfriend she tells everyone he's a little wimp. What do you think of the slut?