Saying “I love you” for the first time

I’ve been dating this guy for a couple of months now but we previously had a fuckfriends relationship since last May. I didn’t want to get into a relationship at first but he managed to make me change my mind and now I’m amazingly in love with him. It’s the first time I fall for someone like this.

Lately, every time we are alone, especially after sex, all I can think about is how much I want to say “I love you” but I’m terrified he won’t say it back. I know he really likes me but the fear is just there. But at the same time I don’t know how much longer I can keep it to myself! Help!