With my therapist it was a huge relief to share the transference. She simply accepted and embraced it. She said she was committed to me and understood my feelings, so the transference wasn't something to get past so much as to use to make this therapy a corrective experience of mothering. My therapist as a good enough mother certainly can't and won't fill the all-encompassing, lengthy relationship of a real birth mother, but there is a lot to gain from having a consistent, welcoming, caring, skilled presence like that and so I hope your disclosure goes well for you.