If you are asking this question, that is already a meaningful signal. Most couples who would benefit from couples therapy wait years before making the call, and by then patterns are much harder to shift.
A practical way to think about it: if you love each other but keep missing each other, couples counseling is a good place to start. That looks like the same argument cycling through in different forms, conversations that shut down before they finish, or a growing sense of distance that neither of you knows how to close.
You do not need to be in crisis to come. Research consistently shows that couples who seek relationship counseling before things deteriorate get better results, faster. Waiting for a worst-case situation is not a strategy.
If any of this sounds familiar, reaching out for a consultation costs nothing and tells you a lot.