I'm sorry for sounding like a baby. She is paying to use a dating website, and I am afraid that she will meet someone that is going to sweep her off her feet. I mean, when we separated, she said she was not looking for anything, but then she started dating a week later. How a, I supposed to take that?
Yes, you kinda are (sounding like a baby). Stop that. Neediness is NOT attractive. If, in the above scenario, she met someone on there and left you over that? Then she wasn't a woman of quality that you would have wanted to be with anyway.
Use this time to get to know LOVEHER (heck, start with a new username -- it just SCREAMS co-dependent!! Something that is about YOU!). Get to know your core, non-negotiable beliefs. Do you know what they are???
Look, this is tough stuff -- I know, I went thru this. My wife of 47 and mother of our four children was having an affair with a 29 year old personal trainer. It was a KICK IN MY GUT, and it felt like a truck was sitting on my chest when I found out. I get it. But unless you snap out of this "woe-is-me" thing you've got going, you have ZERO CHANCE of saving your marriage, bro.
btw, I saved mine. What we are telling you WORKS. It's counter-intuitive, but let's face it -- your intuitive "instincts" are what landed you in the first place, right?