How to get over online chat addiction...its seductive, anonymous, thrilling, help live in a fantasy world?

I am single male, twenty seven and enjoy romantic chat with women online and at times...i am saving my virginity for marriage...i have been on and off chatting for around seven years now...since there are so many out there chatting i never have trouble in finding women...Now, I feel that chatting addiction can affect my relationship after marriage if I continue doing this. But chatting helps satisfy my fantasy as of now. How do I get over my addiction?