I would suggest going ahead with the meeting based on the positive aspects y'all have discovered.
There's nothing wrong with B-boobs, Darlin', and if he's willing to pass up an opportunity like you for bigger breasts, he has a problem you haven't discovered yet.
Still, the only way to find out is to meet and get to know the couple.
I'd also suggest meeting in a restaurant, bar or coffee shop. Have an exit-strategy planned.
By the way, I just asked Mrs. Alura (who has large breasts) and she said a man who wanted her for her boobs would never see them, much less feel them.
Mr. Alura