If you want to get back in touch with her I think that you definitely should now that 2 years are up. I have told myself that once 2 years pass after I stopped seeing a previous Therapist of mine (who I saw for 4 years) that I may try to contact her to maybe get back in touch with her, it was been almost a year and a half since we last met in Therapy so not too much longer before the 2 year threshold passes.