Why is it different now?

Two people that I met on-line a little over a year ago announced yesterday the truth behind their relationship.
One is married.
One is single.
I like them both very much and initially I was thrilled about their 'coming out' as a couple.

I've had time to sleep on it and I don't feel thrill any longer.
There's a sadness to all of it - namely the fact that one is married and is still living with that partner.
The sadness is because that unknowing partner could just as easily be me. I seriously do not believe that to be true now -- but just the same, I would hate to find out that the Mr. was giving all the 'good stuff' to someone else rather than me.

Yes, I had an on-line net sweetie.
Yes, it lasted for 4 years.
Yes, I felt that I was giving the net sweetie all the good stuff.
Yes, I met him in real life.
Yes, I felt like I was cheating.

No, the Mr. did not know how I felt about the net sweetie.
No, I never slept with him -- like that really make a difference

Yes, I would be sickened if I found out the Mr. was having an on-line affair.