Is it normal to be addicted to sex chatting?

I am in college, so am not close enough to see my bf often. However, we LOVE to chat online. I mean, I personally prefer it over having real sex, and definitely over calling. I have always been good at putting thoughts into words, and he is too. So I love all the sweet sexy things he says while were chatting online. (On the phone, I think it is more awkward.) He tells me how he dreams about me, masturbates for me, and how perfect I am, without reserve. Furthermore, I am able to think of all the things I want to say, and think of the most sexy ways I want to have sex with him. Then, I describe them to him in flawless detail, and he get SO turned on. He masturbates while I type, and I love it. I get a bit horny too. He is always saying how he wants me to visit, so we can do the real thing, but sometimes I feel like sex chatting is the best thing we ever do together, because in person it is more awkward. IIN?