Tough situation..  I find it rather hot when women sleep around even if they're taken, but you obviously want to stop.  I agree with the comment above mine, but you'd also have to stop frequenting the places that this guy knows you go to.  

If you truly feel bad about it and want to stop stop I say take the that advice, but if you really enjoy it and think you can keep it secret, I say keep enjoying your new dick. 

How solvable are the "bed problems" with your boyfriend? I ask because if he is unwilling to even talk about the subject, then the issue is not going to get resolved and you are going to be continually be frustrated, resentful and subject to another affair with another man in the future. Ask your boyfriend if he is content to just be the father of your girls and your roommate and tell him that you are not because you also want him as your lover and if he is does not want you as his lover then you will have to find one somewhere else. If he chooses to do anything to once again become your lover, then he will partly be responsible when he finds out you have found another man who truly desires you. Talk with him first,

Best thing is to end the relationship with youre boyfriend. you probably will keep on cheating and youre partner will find out. If you truly love youre boyfriend you will have to take responsibility and tell him. A cheating Mother is really a bad mother and is responsible for the wrecking of the family and the wrecking of the kids youth.

I think to forget your sex partner.......... Have sex with more than one guy...... Different people will give you different pleasure and then it will be easy for you to forget your mystery guy

Now before I comment, I must state that I was once in the position of husband. From the way you portrayed him sounds identical to how I used to be. All about my 2 kids, except for the fact that I was the main provider for my family, and the only reason my ex was working was not to help pay bills or buy food but only so she was able to have a few dollars to her name. It sickens me on how you think that your so special from anyone else, dont you think that other people feel flattered or yern for desire and passion as well? It really goes to show you how much you really care for your family short and long term wise. Theres no excuse for your actions you had many opportunities to just say no this aint right. But you still did it, not only did you shame your own family which you mostly created yourself you also humiliated and spit all over what you both were working so hard for from the start. Theres only 2 options you completely fess up to your bf or let him know that rules have changed and if the chance shows itself hes allowed to do as you did. Women like you disgust me and are like a virus to your own gender. Good luck to your bf and your girls I'll keep them in my prayers, as for yourself, well you seem to know how to takecare of yourself, my advice make money from it honey dont give it up for free but if you do go find a real good family and be their homewreaker. YES go fuck the husband of spmeone elses good family so that a REAL women not you of course will give ypu what you deserve.