I need help!!! I keep talking to women online?

I am engaged to a beautiful and wonderful woman who has clearly done anything wrong. We have 1 child together who also means the world to me. But i have a bad habit. Talking to women online or some sort of texting. I don't want to because i don't want to dissapoint her when she finds out but its like a habit, like a crack head addicted to crack. Of course ill go 3-4 months without doing it but sooner or later ill go right back to it. I will talk to them, get they phone number and then just disappear out they life. I've never actually text or called any of them. I dont' want to leave my lady. I love her but this thrill talking to another woman getting on my nerves. Ive tried deleting profiles. few months later ill convince myself ill create another one for 1 day, 1 day turns into 4 weeks until she finds out. And its usually when the home isn't happy. I like peace. when its not peace, i like ro resolve the issue asap. well she's very dramatic and sensitive. everything gets to her and upsets her so she's always fussing or wanting to argue. Never wants to talk it out. When it happens to often & the pressure builds up, Ill go talk to other women to make me feel better and that gets me through the day. Now im not blaming her for my actions. Im just telling you why i do what i do. PLz someone help me. I do want to stop