You will suffer no beatings here.
No shaking fingers.
Just "Welcome" and "We are glad you are here".
It sounds to me like you are very loved already, by two women willing to sit down and share a meal together, with you. What a glorious dinner to finally have!!
I would imagine that everyone at the table will feel a little odd.
Myself, I would say thank you to both of them.
And also, before dinner, I would tell myself thank you, for having the courage to walk down a new and honest road.