awwww, man these are all so good, for what it's worth here's some of my favorites...
"you're such a sub! lol"
once i was having a hard day (and im a musician) she told me "you're too serious today, go play some banjo"
when she calls me a "silly boy"
and the one that realy chokes me up is when she calls me "älskling" (swedish for darling)