He buys/offers me food even though he has a girlfriend, is it sign of attraction?

Knxtrn
Y his guy is in a longterm with his girlfriend for over 5 years now, I think, and we know each other through other parents. And everytime I go up to his own store, (he is a cook) , he always offers me food or insists to buy ice cream for me. He only asks me , but not his coworkers, even though I don't want to he , still does it, not only one time but more than 5 times already. And he bickers me (in the past I had a car accident) , making jokes about the accident, but he still comforted me about the accident, buy opening up, that in the past he also had one. The problem is , I haven't seen his girlfriend around, and when I ask about her, he says she's busy.
I don't know if he is flirtingt, try to look if he still has his alpha in it so that is still on the market, or acts interested or just trying being nice/friendly to me, but he has a girlfriend.
Is it normal when someone is in a relationship to offer food, not to their soulmates, but to the opposite gender?
Or is it normal that , when someone is taken talking to other encounters? - This shit is messing me up.

Normally, if I would have a boyfriend, I would not talk or joke with other opposite genders much, because I'm luckily taken.
He buys/offers me food even though he has a girlfriend, is it sign of attraction?
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