I have been with my gf for 5 years. Last year we decided to move in together, and right now there are talks of tying the knot. Since we started living together last year, I have been getting bored of being with her. The spark is not there at all. She is a very nice girl and I don't want to hurt her, but I'm not happy being with her anymore. I don't know if she would be able to recover if she knew what I really feel thesedays. I feel like I'm not myself because I constantly have to act as if I am in love when I'm not. What should I do??