Husband says his cousin hates me.

My husband's cousin came on holiday with us again In August, he had been with us 3 months previously when he would phone my husband every morning to come and have a smoke with him, and my husband would go even though he does not smoke. I was very upset about this and told my DH but again he invited him to come with us 2 months later- only told me he was coming on the flight.I did not get out of the car when we went to pick him up and appratenly now my husband keeps telling me that I said something to his cousin while we were there so he does not want to speak to me and now rarely phones my husband.Should I ask his cousin what I am suppose th have done as previously we had a good relationship.