My dad remarried when I was 13. Both my father and stepmother have large Catholic families. I'm not that close to her fam, but I see them once a year or so and they've been around awile, so I was happy to invite them and she and dad seemed pleased that they were on the initial list (a seemingly reasonable 160 given their 2 families of 20+each). After an akward convo, my dad agreed to split the cost of our wedding (up to a certain amount) with my mom, but told me that he would have to borrow the funds. And now he continually is asking if we can cut guests, even though I'm in the spending range agreed on. I feel guilty about this, but also annoyed - he's had 2 children since me, both in private school, his wife doesn't work, they have a 5 bed, 5 bath house in a lakefront community, own a boat, go on vacay every year, etc. My mom struggled to raise me solo but apparently planned for me to one day get married. He's suggested not inviting my step cousins, just sm's siblings, which seems tacky to me since I'm inviting all my real cousins. He asks if I can cut friends. I'm tempted to just not invite his wife's family. I'd love to have them there, but if the cost is bugging him out so much, I'd rather loose them than close friends. Are there etiquette rules on this? Other thoughts?