Long distance instagram

Hi all so im in a long distance relationship and have been feeling really insecure and do not know how to adress it. My boyfriend rarely follows girls on instagram but lately i noticed he has started following a girl in his area and im scared he may be cheating.. I trust him but at the same time i am not sure if there is something more and im just left not knowing anything😅😅 it is so fustrating. I dont know how to confront him. I have once caught himhaving tinder on his phone but he said he was just messing around on it with friends and never met anyone off of it. I forgave him but dont know if i can handle that pain again if this is something more and he is hiding it.

Any advice is much appreciated❤❤