If this is the price for loving somebody unconditionally, then I really don't know what to say.
Yes, loss is the price of love. I’m a romantic and still believe in love and unconditional love for my partner. Divorce and DB’ing don’t require relinquishing those. Maybe, with perspective, years from now you’ll look back and say you had 10 great years with her and 2 miserable years getting over her, and it was worth it on the balance. It may take time to get there.
It's a shame that it has to be a 'dirty' loss though. Tainted with deceit and lies and horribleness from her part. We did have loads of great years, been together 19, 2011 was rubbish and this one so far too.
M(55), W(45) BD1: Apr-2011, BD2: 23-May-21, NC (15 June '21) Divorce Filed (16 July '21) --- When you can't see the light at the end of the tunnel, you need to trust it's there.