Dream about someone gaining weight symbolises a lack of communication between your conscious and subconscious mind. Some unpleasant memory or obstacle is trying to hinder your path to self discovery. Someone doesn’t want you to succeed and may even try to stall your efforts. The dream is a clue for your attempts to cover up your own character flaws and habits. You are trying to put up a happy facade in order to avoid confrontation.
Someone gaining weight dream is a message for your cheerful attitude towards life. You are not being genuine and true to yourself. Perhaps you are experiencing some self-doubt or that you are not good enough. The dream is a harbinger for weakness, degradation, filth and general negativity. You are letting hatred and revenge take over and define you.
If you dreamt about someone gaining weight:
On the one hand, your partner seems to want more freedom. On the other hand, they do not want to grant the same privileges to you. There may be a bit of a tussle concerning who allows whom to do what. But try not to end the day on a bad note.