You're Invited

Would you invite your ex-husband to your wedding? Evidently, reports say that Tom Cruise would like Nicole Kidman to attend his wedding. I understand that he wants to show his children a good example, but given the circumstances, it would be plain awkward for Nicole to accept an invitation. For whatever reason people divorce or split in the first place, I would find it extremely uncomfortable to be attending my ex's wedding, be it a boyfriend or husband, or have times changed that much already?