I vape my strawberry & cream 24/7, and most people tell me it smells like a) cotton candy, or b) "something fruity or vanilla" -- they seem to smell the vanilla more than the strawberry, which is really weird since the shisha strawberry is VERY strong, and I use about 14% in the mix.
But when I first started making this, I didn't realize what a terrible gunk monster it was, and when it would get so gunky than the ejuice turned brown from the coil backwash, my husband would tell me it stank like "burnt shit". Which is why I abandoned my kayfuns and went to strictly RDA; my Achilles has a deep well, 2.5ml, but that's a small enough amount that the gunk doesn't build up too much before I either 1) rinse the coil and wick with plain PG, or 2) dry-burn and re-wick, before refilling, and he doesn't complain now.
However, even though I'm a vaper myself, times when my tummy is out of sorts, I mainly lay off vaping just because it smells a bit sickening to ME -- and now that my son, who lives here, is a vaper, I can tell you that some stuff he vapes is really intolerable to be around, even with "fruity cotton candy" smell all around me!
So I think it's really down to both individual preference, and individual flavors. Find one that you really like that she doesn't complain about, and try to stick with that one anytime she's around. And do try to get some facts in front of her -- such as those from the Royal College of Physicians, in England -- who were several years ahead of the Surgeon General in declaring the dangers of smoking -- and Public Health England; both sources have stated that vaping "cannot exceed 5% of the dangers of smoking, and is probably less". I really doubt if either organization is talking out of its ass.
Andria