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No you should feel bad for asking, he isn't going to know you want him to go unless you ask him and if he says no just tell him that him refusing to support you while you were in pain really hurt your feelings. Just because he didn't hesitate to take his grandchild and didn't offer to go with you doesn't mean he cares any less for you, it's different when it's a child because they can not take care of themselves an adult can and that is probably why he didn't think to go with you because he figured you could handle it yourself. Even though it was an accident he may still feel bad about it and doesn't want to find out that he hurt you badly and feel even worse than he already does. Ask him to go with you and if he says no then tell him how you feel about his answer. Tell him you don't want to go alone and you would like for him to be there for moral support.