Eames doesn't believe in true love. He doesn't believe in it in the same way a lapsed catholic doesn't believe in god and the saints, it's a visceral sense of loss more than it's just the absence of truth.

He finds himself wanting to believe in it sometimes with a vague, abstract yearning, but the nature of the world often cures him of the notion. Love makes people miserable all the time and he finds that happiness and love have little to do with each other. He takes what he can. He's happy enough.
(с)

Мало что меня трогает сильнее, чем сравнение любви и веры. Наверное, потому что мне одинаково плохо удаётся и то, и другое.