So we're getting married next spring and my family has offered to throw us a very casual cookout to celebrate our engagement. They've put a lot of emphasis on it being casual, which is great. However, I've heard them throwing names around to invite to this cookout and some of these people are definitely not on our preliminary wedding guest list. I feel like it's in bad taste to invite people to a celebration but not the wedding, which is putting me in an awkward spot. We really don't want to extend our wedding guest list, as we're trying to stay within our budget. If anyone else has navigated this before, do you have any advice??