Welcome! I know how you feel. I, too, have been overweight since elementary. Have you tried the "Walk Away The Pounds" series? They're really quite simple. I really enjoy them. I also tend to loose motivation. I found doing the motivation "activites" found here help. I have a picture of a dress I want to wear at my renewal on my computer.
My hubby also doesn't like vegies and eating healthy in general. But once I started making some of the recipies on here, he started eating healthy without even knowing it and I got him to start liking mushrooms! With men, it's baby steps. Trust me, he may not need to loose weight, but eating healthy benefits everyone.
Any way, congrats on your engagement. Don't be afraid to drop me a line or post something if you need any advice, suggestions, or thoughts about your planning.
"Marriage isn't fifty-fifty, it's one hundred-one hundered." -Dr. Phil