Do you think this guy likes me and what should I do in this situation?

I have a male friend who I really like. Until now, we were just friends, but very close and we talked almost every day. For a while, he started behaving very very nicely with me. He gave me a very expensive perfume for my birthday (Parfums de Marley), he wrote me a very nice message for my birthday at 00:00, he tells me that I am special to him, he writes to me every day to ask me how I am doing. In short, he makes me feel very good and special, no one has ever made me feel like this before. But the problem is that I already have a boyfriend and he knows it. At the same time, I am also attached to him and I appreciate very much what he does for me. Do you think he has fallen in love with me? And what should I do in this situation?

Do you think this guy likes me and what should I do in this situation?
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