[He's not being weird! He's perfectly nice and friendly. Except when he spots Aramis, he gives him a smile and a wave, and approaches him after a while, when Lili finally goes to talk to Shin-ah.]
I suppose there's not much need for bodyguards, here...
[He sighs, though it's also a good thing. He doesn't really have to worry about the daughter of the Water Tribe leader coming to any harm. (Also, that was an explanation. He wasn't being weird, he used to be her bodyguard!)]