Recently, someone I wasn't planning on inviting to my wedding sent me a Facebook message asking when my fiance and I were planning on sending out invitations. They are a distant relative (second or third cousin) that I've only seen a couple of times but I wasn't planning on inviting them because our guest list is already maxed out. Plus, they live far away and I can't invite just one of the families without inviting the other ones that live out there too. Is there any way I can make this less awkward and without them getting mad at me?