When was the last time you remember any spark between you two? How long were you together before you decided to get married? Relationships are hard work. Long term relationships require more than just passion, butterflies etc. There are ups and downs and sometimes it can feel more like living with your best friend not the fiery lover you fell for. But the true connection has to be there for any relationship to last. Communication, honesty, openness, sharing dreams, fears, highs and lows, and most importantly imho true mutual two way street RESPECT. I know it's a gut wrenching talk to have but my best advice is to have an honest conversation w your Hubble about how you are feeling... (kindly and tactfully of course) your partners response may or may not surprise you, but it might give you some reassurance on either way... But regardless, how ever the convo goes... If you still feel the same doubts after reflecting... Then you gotta do you! Yes you might hurt him by leaving but if it's just not working the sooner you break it off the less likely it is to cause long term damage to either of you.