Is this Divorce Worthy?

Would you get a divorce if your husband was looking at and talking to several girls online. Just talking. Not even to the point of sending naked pics. Im just talking about flirting for the purposes of getting girls to like him without doing anything with them in real life? Would you divorce over this or get counseling to find out why he is doing this? Now, take into account that 5 years before you were married and 3 years before you moved in together, when you had a turbulent on and off again relationship and had been with some other girls, one one and off again with for 3 years, and never told you about it. But when you moved out he has been loyal ever since except the internet thing. Does one thing have anything to do with the other? can the internet thing be looked at as something that shows you need counseling and the cheating years before being married looked at as stupid childish activites, or do you NEED to look at them both as a whole? After 6 years of marriage and knowing each other for 15 years, is this something that could be overcome?