It is perfectly normal for it to feel good. Your ego has been badly beaten by your W so this was soothing for it. However, you are very vulnerable and could rebound like nobody's business. Be very careful my friend and don't end up discussing your problems about your homelife with some OW or you'll end up in an EA yourself. It is so easily done, and that is why we can't let our guard down. But don't feel guilty for the fact that it felt good for another woman to notice you. Oh, and don't say anything about it to W....and I am not saying to start keeping secrets, lying and that whole route! But, if you were to say something, she would see it as you trying to make her jealous. Since it was innoncent and just meeting up at the gym.....seems fine, but don't start going for a cup of coffee together b/c I promise, that is all it would take.....and no emails and TM's. Keep your friendships with men only or where your wife is always included when you are with another female friend.
Some time back, I was posting to a man that had been through what you have, and a woman was attracted to him. He did not take it serious and thought it was "nice" that somebody of the opposite sex noticed him. But, I had a feeling from my gut that said she was trouble. I started out warning him, just as I am you, and I told him that if she ever invited him to go anywhere for a drink or something else that "sounded innoncent" or if she ever sent an email or asked for his phone number......those are red flages. Never give her a number or email and never ask for hers. Sure enough, that woman was looking for her own OM and he was adding to his problems at home b/c he did not take my advice and things got worse.
It is lonely, where you have been, but keep it very clean and you won't be sorry. In fact, I would be so careful that I would kind of advoid another chance meeting. That will be hard, but after all, you don't want to get your own "addiction" going. Watch for the flags. If she asks anything, just tell her you are a M man and don't believe in making friendships that doesn't include your wife or talking about your personal problems (and I hope you didn't)tell her anything. Don't fall for female "tricks" when they pretend that they just want to be your friend and she could be unhappily M herself.....what a disaster waiting to happen. So, this was okay.....just watch out if there is a second time...okay? We want to take care of you here and I am glad you asked about it. However, I think you must feel a tinge of guilt to mention it...lol. I gave more than you wanted to hear, but as I said, trying to take care of ya.
Sandi
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!