It's a really common occurrence in therapy. When you consider why we're in therapy in the first place, it's usually to do with love... a lack or it or the abuse of it, so it's no wonder our love and desire to be loved back comes out in therapy. Accepting our feelings might be the first step.
Guilt is often linked to shame, and for most of us, love and shame go hand in hand. If our love (and our need for love) was met with anger, ambivalence or nothing, then we might internalise the love-shame connection.
It's great that you have a good relationship with your husband. Maybe you could channel some of that love energy into your relationship?
I did feel guilty sometimes but I also recognised that it was part of the process. Boundaries help everyone in that respect.