Why did my coworker who has a girlfriend at work hug this other chcik and say give me some love then he kissed her cheek?

Anyway i dont know if thats flirting. It seemed kinda nonchalant but its just kinda funny cuz its strange to me. I think some people are just more lovey dovey. Im affectionate but my shyness and caution prevents that coming through most times. Also i dont wanna be flirting or misconstrued as flirting by being affectionate to a guy i. e. saying gimmie sum love and kissing his cheek.

Im just asking for opinions LMAO. WHAT WAS HE DOING? Why does he need "love" in the form of a cheek kiss on that woman?
Why did my coworker who has a girlfriend at work hug this other chcik and say give me some love then he kissed her cheek?
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