Men and rejection

Why on earth would a man ask about you if he rejected you??? No mean comments please

I was recently rejected by a man that I had talked to on and off. But I feel like he’s cheating in his relationship but not telling people he’s actually taken…
So anyway we have a mutual friend and we’re going to a work event together ( her and I) mind you no one goes into the office. She tells me he’s asking her if me and her are going to the office to meet up with him then go to the work event …
I feel like that’s a sneaky way to see me without disrupting what he’s got going on behind closed doors am I right?