He is a totally uninteresting, limp, little creep with less spine than a jellyfish.
His behaviour during his infatuation with Ben was utterly revolting, he is prepared to ditch all critical moral judgements when in the thrall of his desire.
He seems to think that having a blank canvas for a personality, except for elements of spite and self-pity, entitles him to be a favourite of the house.
Get him out.