Yep, if he is part Abysinnian, they are like Siamese- they NEED to be where their person is. That's not a problem - to many people (myself included), it is an endearing trait. My Siamese kitten has to be everywhere I am. It is not seperation anxity. They just need attention.
The only downside is that with Siamese at least if they are left alone for long periods, they can get into trouble - I suppose in much the same way most cats do but they are high energy and need that companionship.