I need help

I have come into a situation with my LDR (Long Distance Relationship) we have been together for about 4 months.. and my partner does have a son and he recently came into hard times and the mother to his child had offered to help him with rent by moving in.. he told me he wants to work out with me because he has no feelings for her what so ever.. I trust him fully. Now as a woman I’m about ready call it quits because there’s that big chance we’re gonna end up breaking up over this.. do I continue this or just end it all.