Dear Eric: Our grandson, who is still married but separated from his wife of five years, wants to visit at Christmas for a week with his new girlfriend. We would love for him to visit but not with any new friend. Subscribe for unlimited access to The Post Save on unmatched reporting. Get your first year for 99¢

every four weeks

How can we tell him without hurting his feelings and damaging our relationship? Or should we open up our home to him and his new companion and make the best of it?

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