The pendulum might swing both ways, before it lands in the middle.
Your body/brain/mind/spirit whatever, has most likely gone into 'protective' mode. So you feel less interested in him for now. Over time, if the two of them prove they aren`t around to push you to the side,.. ' Your inner-self' will stop seeing this new person as a threat. Odds are you will relax, and realize that you haven`t lost him,...
You need to read more on this site : http://www.xeromag.com/fvpoly.html
Even if you know that site, and have read it before, read it again. I think it`ll help you more initially, then advice on this forum. This forum works good, if you can take the advice and apply it to the standards you have read elsewhere.