I am a father of 3 kids and I have a gay friend. Is it right to feel that I am falling in love with him?

I have a gay friend and we used to hang out together. Before it is just a natural friendship stuff and lately our friendship become more profound and intimate. We used to discussed a lot of serious matter relating family and personal stuff. I ama straight man having a lot of girlfriends before I decided to get married and now I dont know if I am gradually being fallen on my knees for him. I never felt this way before as I am not into gay fling flirt. And now, I am always searching for his thoughtfulness, his way of pampering me, his calls, his sweetness, his laugh and I precisely dont know why and why I am feeling this way. Guys, is this waht I feel means I am falling in lov of him? I never thought in my entire life that I will feel this way in my same and he is a gay. My wife doesnt know this gay friend of mine because if she will discovered my frinedship with this gay for sure she will be jealous of him. Please if your in my case what will you do?