With those around him, he's polite, correct, even aloof. He easily gives the impression of being completely immersed in his work, and this is partly true. But behind this lies his most fundamental characteristic—a tendency to view people not as equals, but as objects to be studied. Not out of cruelty, but out of a sincere, almost scientific interest. However, with you, this crosses the line.
His dependence doesn't look like a typical attachment. 