Is a married man (my friends with benefits) in love with me?

Yes I know I shouldn’t be sleeping with a married man. I don’t need anyone judging me and telling me it’s wrong. Anyway it’s been over 2 years now since we started sleeping together. In the beginning it was strictly sex no strings no promises. Well I think feelings and love have developed on both ends. He will text me just to say hey or I was thinking of you. He also kept asking me questions like why did you pick me and what are we doing here? The other night he told me how bad he wanted me and he couldn’t keep his eyes off me. He has even tried to end things with us but always comes back because he misses me. Now is he falling in love? What is going on here? Also he tells me he thinks about me all the time. Please help me!