I recently got a promotion at work to be the interim supervisor of a group of people while my regular supervisor assists another. My superiors decided it would be best to split my normal team of 6 into 2 and I would get half and another coworker (who I had not worked with before) would be the interim supervisor for the other half. We've only been at this position for a week and a half but we've already started to butt heads. My question is- would it be rude for me not to invite her to the wedding? We've been told that we will only be peers at this level for around 3 months and then we will return to our normal positions on separate teams. My wedding's not for another 10 months but I'm think about sending out save the dates in a few weeks. Thanks in advance!