While Danse is nice to you, he's a complete ass to everyone, Video games dictate that nobody have body hair. Almost every game everyone is smooth as hell. Danse in real life would have hair everywhere if you think about it.
Danse to Hankcock:
"Keep away from me, you filthy ghoul"
Danse to Nick:
"I can't believe you're replacing me with this... thing"
"Believe it, bucko. Now isn't there someone else you should be irritating"
I'm not sure if he's aware of Femshep flirting with him (Back off FemShep, he's mine):
"There's nothing quite like the smell of power armor grease and testosterone"
"The aroma is rather... pungent" (not sure if he says he smells or that he's flirting back)
He likes to talk down to other humans like Piper, calling her not ready and a citizen (If you go by a stereotype KISA, then he would fit that since they're supposed to be the protector of the weak, so it should be left to them)
Danse to X-6:
"Don't mistake my tolerance of your existence for friendship, Synth. We have nothing to say to each other"
Hancock to Danse:
"Brotherhood, huh? I like to see what you're capable of without all that power armor"
"Trust me, freak, you wouldn't".
There's just something endearing about his bigotry. lol . It's like when kids say the darnest things.