Daddy and Doddy

Daniel now calls me, Sarah, "Doddy." Since I returned from Copenhagen a few weeks ago, that´s what he´s been calling me. When I correct him and tell him I´m Mommy, he says "uh uh" with some indignation. Sigh. Did my trips to Jerusalem, London and Copenhagen, all within a span of 6 weeks, upset him so much that he decided that I don´t deserve my Mommy title anymore? Or is it just that he feels that it´s easier to call both parents by almost the same name so that when he calls, one of us will more likely come?
Hehe, it´s cute and funny. But I do hope I get my name back sometime soon. I do think Daddy would like exclusive rights to his title as well :)