I know you don't want to be on the meds FOREVER (and I know when you're in the MIDDLE of things it seems like you will be) but right now is probably NOT the best time to get off of them...at least not until the crisis is over and you can get yourself situation after your divorce.
Counseling is FAB. And I applaud you for exercising as a release, but no matter how amicable your split may be, it can tilt a world off it's axis and I would hate for you not to have ALL the tools you need to get through it.
I vote give yourself 6 months. If you find that your coping is good and that your life is going ok and your stress outlets are still available, then I'd consider weening.
And DO NOT EVER quit them cold turkey. And you SHOULD go to your DR about getting of of them BUT, I find that if you take one pill every day try skipping one pill a week for the first 2 weeks, take them every other day...for the next 2 weeks then take them every 2 days...and so on til your not taking them anymore. Its a more gradual reduction in meds and won't send your brain in a tailspin.
Sending good thoughts your way. Happy new year to you and yours.
Ps. I HATED Lexapro. It made me feel spacey and got off of it after 3 months...if this is the case with you, talk to your Dr about maybe changing your meds for a while...see if those don't work out better...good luck.