sister, there are pros and cons to seeing the same therapist for couples and solo therapy. Here is an excellent article that lists the pros and cons:
GOOD OR BAD - MORE THAN ONE FAMILY MEMBER SEEING THE SAME THERAPIST?

For myself, I would not want couples therapy with my own therapist. He is a family therapist and has offered couples therapy to me, but I do not want it at this point. He has assured me he is able to work with all members of a family with impartiality, and I believe him--he is really experienced and skilled. But that is not really the issue for me. He has given me the name of a trusted colleague who does couples therapy, and I think we will try to see this other therapist when I am ready. Since the two are close colleagues, my T can exchange some information with the other T, if need be and if I OK it.

Good luck!