Boyfriend constantly stares at me

ᏰᏒᎥ ᎷᏗᏒᎶᎧ • 𝓑𝓲𝓻𝓭𝓼 𝔀𝓲𝓵𝓵 𝓼𝓲𝓷𝓰 𝓸𝓾𝓽 𝓼𝓸𝓷𝓰 𝓲𝓷 𝓱𝓪𝓵𝓬𝔂𝓸𝓷.🐦
I always catch my boyfriend staring at me when I'm not looking. I could be watching TV and out of the corner of my eye I can to see he is staring at me we have been together for 2 years and it is happening more and more. I asked him what is wrong and he says nothing. It's really flattering but makes me uncomfortable sometimes. Does anyone else experience this?