Thanks for the responses so far. My go-to inclination is to simply leave things be as well. Although I simply can not bear to see her this way, especially knowing I played a role in it. I suppose our involvement wasn't as casual as I thought. I have deep feelings for her.
And just putting this out there as well, I never slept with her. It was very much an emotional thing with the sporadic making out and cuddling. We spent obscene amounts of time together both on the phone and off it. In retrospect, a purely sexual dalliance enacted sparingly may have been easier to keep under wraps.
Not that it justifies anything, because given enough time I am sure we would have reached the phase of intercourse anyway. And cheating is cheating, whichever from it takes...
In any case the latest news is that her beau has cooled off a bit and is at least allowing her to respond to his accusations. I on my part am making myself scarce and trying to redirect my passions to my girlfriend. It feels odd, I must say. Like trying on some very old clothes after a very long time and not being sure how to make them work with your new sense of fashion. And that's scary. Being in love with her had always been so fluid and natural.
If this is what straying is, then I'll be sure never again to try it. It's a complete mess. Once again thanks for the opinions.
