What am I?

Fuck me?

Because 1 day out of the week I take care of some stuff at my old house and spend some time with my brother. I did nothing wrong. I am always faithful. I am always true. I have never strayed. I always try to prove my love. One spurt of the moment decision leads to a canyon sized split in the trust and caring so many actions. To the point whet a proverbial “fuck you” is necessary. Really? That’s just not fair and completely uncalled for.