I think he certainly did at the beginning, but after meeting and losing Apollonia, I don't think he had the ability to feel true love anymore, at least in a romantic sense. I always thought Pacino did an incredible job portraying this in the scene where he greets Kay in NH. His words seem scripted, and his slight hesitation in saying that what's important is that they have a life together, have children etc. to me betrayed the fact that this was purely a transactional marriage for him