Bug in theresa quest

Hi everyone, sorry form my poor english.
i completed the first part of theresa’s quest, the one in which to stroll with her. now i should ask for another date but theresa keeps following me in the game world, occasionally she pops everywhere beside me. if i try to talk her it starts the dialogue animation but then go back to the game as notighing ever happened. i can’t see the mission icon on the map anywhere.
is it a known bug? if i proceed with the game is there the possibility to lose the whole questline with her?
i’m on ps4.
thanks for the attention