Relationships are based on trust but more importantly they find their solid root in the amount of time both of you spend bonding together. This includes serving as psychological support to each other, but also enjoying doing different activities.
With obesity rates where they currently are, in the United States, it becomes more important than ever before, for couples to include yet one additional bonding activity in their portfolio of dual activities. And this involves exercising together.
I wouldn't teach you anything if I said that sometimes we get way too comfortable once we find ourselves in a relationship. We begin to "let go" a bit, and care less and less about our physical appearance, possibly because we've already "landed" our dream guy or dream girl.
However, exercising and staying in great shape in a relationship not only helps bring each other closer, it also serves as a psychological booster. As a woman, I'm sure you would love it if you partner just can't take his eyes off you, even after 5 or 10 years together under the same roof. And vice versa.
I am not focusing on just the physical here; but my point is that the physical leads to the psychological. They both work hand in hand.
So start exercising with your partner. My partner and I get up at 6:00am, five days a week to exercise. It is the best feeling ever, because we both motivate each other, and she has been complaining less and less about the difficulty levels of my daily exercise programs. That means she's getting stronger and sexier every day.
Come on; set a goal and encourage your partner to work out with you twice or three times a week. And build up steam from there. Good Luck, and don't forget to try my partner workout here!