My FH and I have always had a strained relationship with his sister. Last year before we got engaged we had a blow up fight but then ended up agreeing on what each side needed to do and how to act for us to have a civil and cordial relationship. After this conversation we have stuck to our part of the deal, attended her kids events and traveled the 6 hours to be apart of her life. Now that we are having our first event, my bridal shower, she is saying she can't come because she has a 10K race with work people!!! this is such a ridiculus excuse and it's so obvious she doesn't want to come. I understand it's 6 hours away, but we've done that trip several times for her!! The fiance told her that if she doesn't come to shower then our relationship will be strained again and we will NOT be attending anymore of her events. Are my fiance and I making too big of a deal with the bridal shower? I know it's only a bridal shower, but it's more about her not caring about our relationship!