You could ask him for a counterproposal.

If he provides one, then you can respond to it and perhaps an agreement can be reached.

If he won't provide one, then it seems that there is nothing you can do other than continuing to make it known from time to time that you want him to have a relationship with your/his daughter and you still hope to come to an agreement towards that goal.

Considering, though, that he has let her down consistently over the years, perhaps there is little point in trying to get his consent to any sort of agreement.