Heart or brain

So I love my bf and he loves me so much but I can't deal with his family and especially his relationship history, he has a Looooooot of exes and 2 of them are from the family. The problem is that I love him and I don't want to let go of him but my brain says that this is so tyring and we can't go so far . Ps : I get really jalous when it's about him 😣. What should I do???? move on or break up ? please tell me how in both cases . thank youuuuu best sisters in the world 😍😘