My girlfriend noticed that I had liked a photo uploaded by my ex. It wasn't a romantic photo, and I didn't even think before double-tapping it. But my girlfriend saw it within an hour and immediately sent me a screenshot.
I tried explaining that a like meant nothing, but then she asked why I still followed my ex in the first place. The conversation moved from Instagram to WhatsApp and became worse with every message. She brought up old arguments, I accused her of being insecure, and she unfollowed me before going to sleep.
The next morning, I realised the issue was not really one Instagram like. For months, she had been uncomfortable about my ex, and I kept dismissing it as overthinking. Sometimes a relationship doesn't break over one big event; it breaks because small ignored feelings finally find one stupid trigger.