Regional stats & multi player

(ps4) why is it that l can play for a few hours to get the score up then pause the game for a hour or two, come back and people have joined my session even tho l make MP invite only then quit the game and start again, then the stats have dropped and the rivels gone

People should not be able to join your game under ‘Invite Only’.

There is no pause, so for extended leaves more than a 10 minutes is always best to exit to main menu and put on sleep mode. You be at the closest safehouse anyway,…

Hence:
Rivals on Reddit