So I have 1 sister in law I don't really get along with that well. I was in her and my brother's wedding (she asked me last minute because one of her friends dropped out). I don't really want to have her in it but I am afraid her and my brother will be angry at me, and she wouldn't let her daughter (who I am extremely close to) be my flower girl. Should I suck it up and ask her? I am torn!