EJ711 is right - sounds like it doesn't matter what you do, they will do what they will do - so do what feels right for you. You deserve to have a nice holiday too. It won't mean you don't care or don't love them if you take care of yourself. Though I'm not sure you're worried about that.
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W.Rose
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“The individual who is always adjusted is one who does not develop himself...” (Dabrowski, Kawczak, & Piechowski, 1970)
“Man’s mind, once stretched by a new idea, never regains its original dimensions.” (Oliver Wendell Holms, Sr.)