My partner and I decided to get healthier this year by working together in order to support our efforts.  We are cooking healthier together and exercising together.  Thus far it is actually bringing us closer together as we see the progress we are making and we also make sure that the exercise we do is something we both enjoy.  

I can imagine this is a great idea. Unfortunately I can't seem to convince my husband to join me in my healthy living journey.

But that's great that you guys are working together to get healthy. I would think having a partner who is going through the same thing as you is very helpful.

If there's a day when I need to walk I plan on dragging my boyfriend along with me if he's around. I think it's important to have a partner in everything you do. This allows you a sort of support system. So having your husband or wife or girlfriend, etc., be a part of your weight loss or healthy habits, is a really good idea. They get healthy and spend time with you too!

 Using a new healthy lifestyle as a relationship building experience can be a double edged sword.  It can work out wonderfully, but if one person changes their mind this can become one more thing for a couple to fight about.   Tread lightly and be open with each other about your intentions and it will work out for the best.

I can see where problems could arise if both partners aren't together on this or if one changed their mind later on.  In our case, we are having fun with it so I don't think there will be any issues in that area.  

 My ex girlfriend used to try todo this with me. the thing was that I had to go to HER schedule.Even if I had more important things to do - like paying the rent, or going to see the bank manager, or making my dinner after I got in from work she would throw a hissy fit if I didnt do it as soon as she said it was time. yet it was all my fault. I still had to find time to work out amongst my hectic lifestyle, and whenever I had a free hour then I would say to her but the reply was always 'I have already done it when you were doing X (usually the accounts)) my point is that you have to dedicate a certain time every day for it and both stick to it. if one fails then you are allowed to give the other person a forfeit from a list of things you both agree to - like the other one has to pamper you for a night or such like =)

 I think this is such a great idea.  As long as both of y'all are on the same page about your health and fitness goals and you have an open line of communication throughout then this has the potential to bring y'all even closer together.

The one thing I will say is to pay careful attention to the thin line between support and obsession.  It's one thing to motivate your partner to keep going when they're having an off day, but it's another to get nuts about it.  But I don't think y'all will have a problem.