The buddy system can work well when you're trying to lose weight. That other person can keep you motivated and accountable.  

When that buddy is your spouse, they can make things more difficult and they may not even know they're doing it.

Larry and Clare DeBoever have this routine down.

"Larry does most of the shopping and cooking," says Clare DeBoever.

Clare supports, just like 15 months ago when Larry said he wanted to lose weight.

"We talked about it and made a commitment to each other. We're really gonna do this," says Larry DeBoever.

They admit commitment turned into a bit of healthy competition.

"I'm still stunned at how quickly she was able to lose so much of weight cuz I was convinced I'd be better at this than she. I should've been better," says Larry DeBoever.

Better or worse, they're in it together, side by side, pound for pound. When couples aren't on the same page, it can create trouble.

"It does cause some problems, and in some cases divorce," says personal trainer James Conley.

Fitness trainers see it happen and point to some reasons like different lifestyles.

"She's prone to do things physically active and he isn't and it causes some dissension between the spouses," says Conley.

Losing weight, getting fit is an individual choice. However, couples can find compromise.

"We're both in the gym and our goals are extremely different but we are gonna reach middle ground and both be here working out," says exercise specialist Lisa Ross.

For the DeBoevers, the team approach works. They share success, failure, and the joy of shopping for smaller sizes.

"I've lost 68 pounds so far and my goal was 60," says Clare DeBoever.

"And I've lost 52 pounds and still working toward my goal. I'd like to get more off," says Larry DeBoever.

Makes weight loss twice as nice and if you need help when it comes to losing weight and want to do it as a couple.

Check with local trainers or fitness centers who sometimes offer specials for training more than one person at a time.