It sounds like maybe you need a break from the relationship. At least until you see how you feel off the meds. It could be you two just aren't cut out for each other long term though. It's tough to face that, but if you can't fix it and you're both not on the same emotional plane, that may be the case.
I know that anti-depressants can cause as many problems as they help for some people. The feeling good part is nice, but sometimes you 'need' to feel everything. It's nature's way of helping us know that we need to make changes.