Anji.... I would personally not separate him out... I have noticed the same thing James mentioned, small groups seem to make the snakes a little more bold and more willing to say ME FIRST!!!! I had a snake like this, my male high black oregon red spot would go for a week or two and then when he ate, only a little bit. I even took the extra measure to baby him at each feeding and offer things he really liked but it still didn't work. He was not growing as fast as the others and he was always hiding... never came out to bask. He unfortunately did not make it.... I hope your situation turns out for the better!