Okay, but imagine the night following the day Roger had told Mello and Near that Watari and L were dead (also the day Mello ran off) that Near is just genuinely scared. So, with one big brother dead and the other running away with his boyfriend- I mean best friend, he seeks comfort with Roger, and just goes and has a sleepover with him for a night, and they just cuddle and be said and miss Watari and L together.