If you can afford it, the Abundance for Life course is quite a feast for putting your life into perspective and living a full life.

I think you're already ahead of the game, though, if you have already found a loving partner. The only one who you can control is yourself, so just focus on being faithful to him. The universe does not expect you to be responsible for what he does or doesn't do. If he is not faithful to you, that's his problem, and the universe will teach him what he needs to learn. You have no control over that, and you're not suppose to. So, release that worry and obligation from yourself. Channel that energy into more worthwhile pursuits, such as accepting yourself for the way you are right now.