Really?  Do you? Or do you only feel obligated to say it because we are somehow related? 

Facebook announces some relative you haven’t seen in upwards of 15 yrs is celebrating his 10th wedding anniversary with his wife you’ve yet to meet. You comment, “Happy anniversary,” because this is what normal people do. The rest of the family that hasn’t been around in eons takes it to the next step with “Love you both so much.”

I guess that’s better than “Tolerate you.”