I don't know, I'm still in the Catholic church but I would want nothing more than to get away from those rituals because they don't benefit me spiritually whatsoever.
I guess the best thing to tell yourself whenever you feel like that is: "It always looks better than it really is, and anyway if I were there I would just be wasting my time." You may think you want to be back in there, but as someone still in there, I'm telling you, you don't want to be there. Especially if you know the truth.
Geoff, I totally understand how you feel. I've got Catholic ministers and teachers (All my relatives are Catholic) telling me how going to church, doing confession, going for mass as much as you can is "good for my soul", and I have to keep telling myself to shut up and just say "yah, it's good I know", and when my Pentecostal friend talked about how her pastor's wife died (When she broke the news, she sounded rather happy) she was talking about how she was being happy in heaven, and I had to bite back my words of "But she's still dead in the grave".
Sometimes, knowing the truth makes me halfway between absolutely joyous and absolutely wanting to tear all my hair out.