So, this is an interesting concept. You’ve heard of pre-marital counseling. This article highlights the importance of “wedding therapy,” with the idea that brides (especially) might need some extra support as interpersonal conflicts erupt over who to invite to the wedding, how to arrange the flowers, etc.
Milestone events, to include weddings, can absolutely shine the light on relationship tensions and a need to clarify values. It’s rarely about the “wedding,” and more likely about something bigger (“my mom doesn’t respect me,” “my sister thinks she’s better than I am,” etc.).
The relationships and emotions that come up are important. Work on your (pre-)marriage. Give it the time and attention it deserves (wedding is one day, marriage is much longer).
Read more about wedding therapy and one NY-based therapist who offers it.