I Fear Henceforth Once She Became My Mother-in-law

The explanation of male friend is his parents experience little, too frank, do not know courtesy. Listen to him so one explanation, I think, two family contact is long perhaps had met. But actual condition does not imagine like me in that way. Contact grow in quantity as the family with him, I more and more the practice that feels to oneself understand his mother hard, I fear henceforth once she became my mother-in-law, how should be I gone to face.