you are having these problems and doubts, please consider it! After listening to the whole story,and learning both of your personalities he'd probably recommend you two postpone it as well, and you'd be off the hook and not have to say it yourself. A counselor will really help your situation, and will give you the tools you both need to sustain a healthy and lasting relationship. Seeing that your fiance has studied psychology, it shouldn't be to hard to get him there. Just make sure to let the counselor know ahead of time that your fiance has studied psych, so he can't manipulate the sessions. I think you know what you need to do. It sucks and it's hard, but now is the time, not later! If you really love him and want your relationship and marriage to work, you need to fix a few things first. What is going on is the kind of thing that can destroy your future together. Get some professional advice before you marry him. Marriage is a big decision, and unfortunatly, it's not all about love. You need to go into it with your eyes wide open. Don't make excuses for him, or feel guilty. Do what you need to do to feel right about it, and be true to yourself. You'll regret it later if you don't. I hope you take some of my advice, and I really hope things work out for you. Good luck, and if you ever need to talk