[boomoo]

Marcus said he has to rely on himself most of his life. He may have been in care.

Freddie was most likely to have been bullied as a child. He was undiagnosed as a dyslexic until he was 13 so that is years of being made to look stupid.

Housemates getting at him because they percieve him to be clever ( because he went to Oxford) will remind him of the abuse he got when he could not read.

This is the irony of the case. Charlie saying he started off in the tops sets at Comprehensive school because he did so well in his SATS.
I bet Freddie would not be able to say that. He never brags about being clever.