1. Were they Prince / Princess Charming when you first started going out?
2. Do they always talk about how great they are?
3. Are they happier when you compliment them?
4. Does it seem as if they don't care about your feelings?
5. Do they have any friends that are long-term?
6. Are they constantly demeaning you?
7. Do they take pleasure in gaslighting you and others?
8. Do they avoid defining relationships?
9. Are they never wrong? Do they ever apologize?
10. Do they freak out when you try to end things?
11. Do they lash out when you show them you're finally done?
If you said yes to the above questions, then chances are: you're dating a narcissist.