What am I to do with you...yes, seduction is an art, one that definitely needs to be learned.
But...
You mentioned that your H had a few regrets about you when you had the discussion...what about working on those and see how he changes...it just takes one to get the ball going...try that.
Don't be so sure that your OM will leave his wife...more cases show that at the final point, they either chicken out or realize it was just a dream.
I think you owe it to your H to try to resolve your issues. Without seeming or needing to put you down, it's not my idea to judge, but, it seems you are way too much into your needs w/o thinking about what recourse it will have for your H. You have spent some time with him. He should not be cast out as yesterday's news.
I truly believe that there is not just one person for anyone in life...there are hundreds of people. God would not limit us to just one; that being said, you need to reflect about what you really want from your life and plan goals...the answer doesn't lie in being with a man...you need to become whole before you enter into another R. The next R, if you so choose to, should be a person who is your partner...not a fantasy read in romantic novels...reality proves, all marriages go from lust to loving companionship and those are the facts...you or whomever you become next involved with, will reach the same point...it's up to you both, to keep the love alive...that Sonata, you can also do with your H...people are not that disposable.
IMHO, you will encounter the same thing in your next R, b/c it seems you need to be in love 24/7 and that is not how love works...