There are several ways to get the spark back in someones relationship. One way is to do something nice. Make her feel wanted by you and that you still find her atractive in your eyes. Girls love to feel loved, esp. by those that they love. Send her flowers at work with an "I love you" card... or surprise and make her supper. Or maybe take her on a night out on the town. Seriously if something has happened that's keeping you two apart then you need to sit down and talk about it because communication is the key to any good relationship. Make sure what ever you do is from the heart... even if its getting her, her favoutite candy... she'll love it and she'll realize that you still care and you want to try and make it work. Another thing might be that theres no spark in the bedroom... try something new... ask her what she likes, just get her involved.