Hi Zephyr, I think calling someone Momma when they aren't with the kids could evoke a reaction of - I'm only seen as Mum.....not W, GF, sexy independent woman - just Mum.
There's also something for me about putting the kids first to the detriment of the marital R. When I hear a W say to her H 'Daddy - what do you think of that' - It grates with me now and think uh oh, heading for trouble. To me, it's really important for us to maintain our own identity and nurture our R as a couple.
I think it's fine to call someone Daddy when the kids are around - particularly if they are smaller. But I think morphing into calling them Daddy at other times probably isn't a great idea..
JMHO - I'm not a parent myself BTW, but I have been a step-parent...
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus