1. They don't seem to care about your feelings
In the early days of dating they couldn't get enough detail about your life. Now even a relative dying is met with a shrug and an apologetic jerk of the head.
2. They stop making the effort
We all know the story - each early date more extravagant than the last. Now it's a TV dinner and Wheel of Fortune. Again.
3. Your partner becomes a vessel for your complaining
Yes, your partner should be there for you, but if you spend all your time complaining to them, it's likely the spark will begin to dwindle.
4. They belittle you
Rather than playful, friendly banter, your partner makes you feel small and stupid. No one should be made to feel like that, least of all by someone they love.
5. They'd rather go out without you
This sends a horrible message and is basically a terrible sign.
6. Tiny things become huge problems
insignificant details that shouldn't matter suddenly become huge problems
7. There's no communication
Every good relationship is built on strong communication. If you aren't talking properly about your feelings anymore, it's a sign all is not well.
8. You find excuses not to go home
Yet another late night at work, an extra long gym session. Whatever it is, you should be honest with yourself about the real reason you are avoiding going home.