YOU SAID:

but I don't see how that makes becoming friends impossible

INTO JAPANESE

でもそれがどうして友達になれないのかわからない

BACK INTO ENGLISH

But I don't know why I can't make friends

INTO JAPANESE

でも、どうして友達になれないのかわからない

BACK INTO ENGLISH

But I don't know why I can't be friends

INTO JAPANESE

でも、どうして友達になれないのか分かりません

BACK INTO ENGLISH

But I don't know why I can't be friends