Tom seems to treat Blink like an on again - off again relationship. It's not healthy for both parties and a decision has to be made. He stays out of blink and everyone moves on. Or he comes back into blink where the relationship is already ruined, the others in the relationship would alwayswonder if he's going to fuck up again, and the family members (the fans) don't trust him and don't want to see him hurt our family.
Obviously travis and mark have chosen to move on but tom really hasn't.