“My girlfriend goes through my phone”

What could be going on

Jealousy: Fits if she fears losing you to someone; check what she's looking for.

Mistrust/abuse schema: Could come from past betrayal; check whether she was cheated on before.

Anxious-preoccupied attachment: Checking may soothe her anxiety briefly; check whether she needs constant reassurance too.

Protest behaviour: Snooping can be a desperate way to restore closeness when she feels distance.

Coercive control: If monitoring comes with rules, isolation or fear, this looks more like control than insecurity.

Controls a partner's money, friends or movements: Check whether she also restricts friends, money or movements.

Also said as

• she checks my messages when I'm asleep
• my husband demands my passwords
• why does my partner keep snooping on my phone
• he tracks my location and checks my texts
• my wife reads my texts
• my boyfriend snoops through my phone