I like these:
"We are not in love, ours is a purely textual relationship.'' (Woman on elevator discussing her messaging boyfriend, overheard by Frank Grimaldi.)
"You're starting to smell like an older woman, and I'm really loving it.'' (Twenty-ish guy to 20-ish woman, overheard near Caffe Trieste in Berkeley by Gary Handman.)
"O.K., I'll pretend we're getting married if you really think it will help.'' (Male college student to female on UC Berkeley campus, overheard by Linnea Nasman.)