Pack it and put it in the basement. It is out of your way and if she ever asks about it, you can just bring it up to her. Problem solved.
I disagree with how you handled the girl situation. You should have jumped in there and said you were married. You could have told her you were separated. That isn't fair to not tell, it is like you are leading her on and then next time...BAM...a slap in the face to her. Always be upfront.
Let me ask you this...what if you were single and met a woman and had a really good conversation with her, never discussed relationship and then said goodbye. All week you think about this woman and can't wait to get to the bar (or wherever) to see her again. You show up (wherever) and there she is. Then she tells you that she is married. How would you feel?
Oh God, I feel like an old hag trying to teach her son right from wrong. You do what you want. It is your life. You do what you feel is right and what YOU want to do.
Sometimes you can't keep living on borrowed dreams. I'm sure others will say you need to stay away from the women and work on your marriage but you know what, I'm at the point in my life that says to hell with everything else...go out and have a good time. A person can only sit and wait for so long. You are the only one who can decide how long to wait but don't waste years waiting like I did unless you feel there is a chance.
I could say more but I don't want to write a book and besides, I'm sure I have said enough to make many people angry on here. (not my intentions at all though)