As others have said, $2,500 isn't worth throwing away your marriage. You love her, and she loves you.
However, I would recommend that you both explore couple's therapy. It's healthy to do a bit of a check-in!
I think the best thing to do is to help figure out how to manage stress and conflict more constructively for both of you. That nips the problem in the bud, and makes it easier for you two to talk face to face about issues that are sensitive or stressing you out going forward.
Counseling has helped a lot of my friends and family through tough situations, whether that is relationships, mental health, coming out, spending, stress, etc. It can be super helpful to get an outside opinion and advice from a party that isn't emotionally invested in a problem (such as a sibling, friend, or relative). I went once to get a fresh perspective on a longstanding problem and came out a new man.