Dear Prudence,
My partner of five years and I recently broke up. It was sad but amicable. We still live together for logistical reasons and are on good terms. I’ve assured her that she will always remain part of my family, as mine lives nearby and hers is several states away. One of my sisters is getting married next year. Should I plan to invite my ex-partner? My sister will make space for her if I ask her to. I want her there and want to give her enough notice, but I am getting fairly serious with another person and don’t want to offend her. Is it weird for an ex to attend a family member’s wedding?
—Still My Plus-One?