I would show them the same attitude as any other person coming to the funeral, so perhaps tea and sandwiches cakes, kind of thing that you would serve to anyone. That way you are not specifically ignoring them, but nor are you letting them be the focus of attention at such a time. Can I suggest that you try and think of some of the places that were very special to you and your husband. They could be just a local walk, or a day trip to the sea or to a garden or wood that you loved together. That you use these to give you some peace and lovely rememberance of your time together, and plan after the funeral is over to visit one or perhaps more of these special places yourself, or perhaps with a trusted friend? I found this helpful when my husband died and it gave my mind somewhere else to go at times when things felt so difficult and sad. Then if any of them are behaving in a disrespectful way towards you,you will have the memories to hold on to to know that whatever they think matters little. You and your husband had a loving marriage and although you feel so sad missing him, you will be able to use these places to remind you of what counts. So you know that together you were right, and whatever they do or say cannot take away from the joy you gave each other. I still go now to specific special places that have meaning for me, when life is hard, or there is some upset I am trying to deal with and I am always calmer for visiting them, and often there have ideas of what he would have suggested that I do, and get comfort from them. I send you my condolences and wishes for some peace and calm now.