He looks at the other members with so so so much love because that's his second family, the people that have been with him and helped him at his lowest (his own words btw), who he cherishes and trusts with everything....and then he looks at Felix like he hung the moon and stars regardless of what he's doing at any given point (that expression changes only for lust - example the tour video that came into conversation earlier, or playful teasing but even then he's Fondgazer 3000. Get up Hyunjin. Get up.)...like that's his angel his fairy his baby... and then on the other hand for example we have Jisung - his bad bacteria (I loved that expression so much it was so cute I've started calling my cat that :,))