I dunno, Selina, I think Diana would be more amused than anything. Dinah would probably ask for a turn of her own.
And it can't just be me who cannot get over Selina's poor grammar, there, right? If you're going to end a sentence in a preposition, no big deal. Rules like that are pretty meaningless in casual conversation. If you're going to use the word "whom," also no big deal. Proper use of the objective case is always of the good.
But don't do both at once! Augh! Either be formal or be casual, but do not put "whom" in a sentence you're planning on ending in a preposition! Following the one nitpicky rule only emphasizes the fact that you're not following the other! It sounds wrong!
(I only nitpick myself because if I expressed the SO MUCH LOVE I have for this, I'd run out of comment space.)