Feeling like you're 'overreacting' is itself a common effect of emotional abuse — you've been trained to doubt your own reactions. Abuse isn't a single argument; it's a pattern of control: walking on eggshells, blame-shifting, and leaving conversations confused about what's real. If you regularly question your own memory and feelings after dealing with someone, that disorientation is information, not weakness.
Everyone has bad arguments. Emotional abuse is the steady drip: control, contempt, and a slow erosion of your confidence in your own perception.
You don't have to prove it's 'bad enough' to deserve support. If you're in danger, call 911; in the U.S., the National Domestic Violence Hotline is 1-800-799-7233 (24/7).