“He says I'm too sensitive”

What could be going on

Invalidation: Fits if he dismisses your feelings as wrong rather than trying to understand them.

Gaslighting: Check whether 'too sensitive' is used to make you doubt clear hurtful behaviour.

Sensory processing sensitivity (highly sensitive person): You may genuinely feel things deeply; this is a trait, not a fault.

Overreacts to mild criticism: Check honestly whether you react strongly to mild criticism across many relationships.

Rejection sensitivity: Fits if you read rejection into small moments more than most.

Alexithymia: He may struggle with emotions himself and find yours confusing.

Also said as

• my boyfriend tells me I overreact to everything
• she says I'm too emotional
• am I too sensitive or is he mean
• partner says I'm dramatic
• my partner calls me oversensitive
• my husband says I take everything too personally