Yeah, stress is a b_tch sometimes.

Would you be ok with opening up to your partner about how you feel? Maybe he or she can support you or offer you empathy.

I'd strongly suggest that you don't break things off without at least talking to him/her about what you're going through. Relationships are all about communication, trust, and teamwork, and they don't work without any of those things.

I think being honest and open will help you. If they're not supportive, well, that says a lot. But what if they are supportive? Maybe you'll be able to cope with things better and be overall happier. So I think it's worth a shot.