Why can't I see my mom crying?

Well it is harder seeing your parents be sad than your friends because no matter how much your friends mean to you, your family/parents will always mean more.And when you do see them sad, cheer them up by making something homemade for them or write them a card say how much you love them! Because when they are sad (and even when they are not) they will appreciate that so much and will love whatever you make :)