Here is a thread from a few years ago. Some ideas of where to look and the last post has a first name.
https://dumagueteinfo.com/board/thr...counseling-family-therapy-psychologist.22940/
I'll warn you it's from the male perspective. The last post is a member who offers help and is a psychologist, but I haven't seen a posting from her in my time here so not sure how you would reach out. Maybe an admin can help. Her name is Christine.
I'd be pretty concerned when you need pre-marriage counseling. That usually comes after a few years of marriage.It's good that you recognize there are issues and are trying to resolve before you get married. The truth usually lies somewhere between the right and left perspectives.
Another thread from this forum. Mr C is a specialist and has some thoughts.
https://dumagueteinfo.com/board/threads/good-psychologist-in-dgte.23079/
Here is a newspaper article on the Behavioral Science Clinic (BSC) in Barangay Candau-ay, Dumaguete City.
https://www.sunstar.com.ph/article/90528
Here is the resume of a Silliman faculty member that may do work on the side. Her email is in the resume.
http://silliman.academia.edu/MicheleJoanValbuena/CurriculumVitae
Good luck!