Why does my hot neighbor still stalk me online when he has a girlfriend?

I moved to a new house and there’s a cute guy Nextdoor, we liked each other and would stalk each other non stop since our rooms are across each other. We barely had any interactions but we had a huge crush on each other.

I found his instagram and noticed that he had a girlfriend who looks a lot like me, same hair color, body type, skin color and even freckles… I got mad and stopped liking him and putting attention to him.

Even so he still stalks me, my instagram and everything I do and is all sad and butt hurt that I don’t pay attention to him.

Why is he like this? Like he has a girlfriend, I don’t understand him
Why does my hot neighbor still stalk me online when he has a girlfriend?
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