she doesn't have any friends. Jas is the only one. She tries to convince herself its the life stage she's in, the provincial life of she briefly submitted to, her 'mum' era, or her desire for a career - but its none of those things because Tommy does clearly have friends and sees them often. She is insecure and therefore resents him. But really its because she's spent the last decade promoting her shred of a career at the expense of her friends - and as soon as she was busy with young children they took their opportunity to drop them. Its really sad but entirely down to her immature and entitled personality that clearly hasn't developed since her mid teens.