We are planning a very small ceremony and reception (60-70 guests) and are not planning +1's for anyone (but obviously we are planning for SO's). One of the GM's son is our ring bearer. Currently, the parents are not together--but are a very on/off again couple. Does the mother need to be invited? She and I are not friends---actually do not get along at all-- but I am trying to make sure I am not letting personal feelings toward her cloud my judgment.