I think sessions where you discuss your relationship with your T, and talk about affection or love for him, can be the most healing of all. When I've had sessions like that, I feel like I'm on top of the world. It's great that your T said "I love you too." Not all Ts will say that, maybe for fear we'll take it the wrong way, but they show their love in other ways, by being there consistently for us, for example.