What does it mean when a guy says he likes you?

I've known this guys for a month and a half now, we always said I love you to each other and such,i do like him but 2 weeks ago he started saying I like you to me randomly, like today he told me he liked me and I said I like you too, and then he got really close to my face and caressed my cheek and said I like you and I said I like you too..all of my friends thinks he likes me...if this helps he also compliments me and calls me cute and he always likes to hold my hand, hugs me, plays with my hair and he has kissed me on the forehead a couple times, but he has a girlfriend. I'm not sure what to think

What does it mean when a guy says he likes you?
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