If you don't think you can last more than a couple of months, then I think you have to accept that your marriage is essentialy over as she is going to be on high alert and will almost certainly catch you again, since you have already proven to not be careful enough.
IMHO you have a couple of choices and really none of them are great.
1. Sit down with her and have a grown up discussion where you explain that you still love her, and your relationship but can't live without the physical side of things, and since you didn't want to have an affair where feelings were involved you went to a proffesional, and if she isn't prepared to try to rekindle the passion (after you've been for a full STI check for her reassurance, since we all know not allowed or her friends will have told her you are probably riddled) then she should allow you to keep seeing escorts, even though you would much rather be having sex with her but don't want her to feel any pressure. And tell her that if she wants to see a male (or female for that matter) escort then you'll support that with the same rules of no feelings.
2. You can tell her what she wants to here and that you'll stop, as you said you won't be able to, use the time to get prepared for the inevitable fallout when you get caught again. This might include arranging somewhere to live, making some sort of plan if there are kids involved ect.
3. Ask for a divorce
4. I doubt this will be an option given what's been said about you telling escorts you love them. But do a load of research and find out how to cover your tracks much better than you have. If this is the way you go, I'd combine it with point 2 if I were you.