Why does boyfriend wipe my kisses off?

Me and my boyfriend have been dating for a month now. I'm his first girlfriend. He's sweet and a gentleman. He's geeky and a gamer. He has our homecoming picture as his wallpaper/background for his phone. Whenever we kiss, he sort of wipes it off. When I can't really see him or just a few minutes after. It hurts me sort of like he doesn't even like me...im not sure if he did that when we first kissed...
Why does boyfriend wipe my kisses off?
Post Opinion