Asked by Woman, 22
If he does not say it, I do not believe it, even when he is kind.
Reassurance works for an hour. Then the tank is empty because the leak is in you, not in his mouth. A decent partner can say kind things. They cannot be your only proof you exist. If you need a sentence every night to stay, the relationship will become a job. Get the leak looked at.
Wanting to be told you matter is human. Needing it as a drip feed is a wound. You can ask for words and also build a life that does not collapse between them. If he is stingy with warmth, that is a him problem. If no amount is enough, that is a you-and-a-professional problem. Both can be true.
Ask for one consistent reassurance (a goodnight text). Meanwhile book someone to talk to who is not him.
After both answers