Motivating friends:D

Hi,I'm trying to start getting back into the groove of working out so I can lose some weight. But every time I start,I stop a few days later :( my fiance isn't very encouraging,he's gained weight himself so I'm motivating him more than myself but he never tries to keep workouts going. It would help to have some friends that could encourage and help me and I can do the same for them! :D