I'm 31, office job in Rayong. Been with my girlfriend almost two years — steady, not flashy — but I got this bruise-on-the-heart last night that still hasn't healed.

Quick version: around 2:30am I was in bed scrolling Facebook. I saw a coworker's story in our work group, then accidentally saw my girlfriend's story — a photo at a cheap eatery near her alley. Her hand was touching some girl's arm just so, like they’d known each other a long time. Caption was just heart stickers. I was like... silent.

The pic wasn't even clear, it was a blurry story. Then I went back through old stories and found several photos of them together over the past two weeks up to almost a month. My girlfriend's been saying she goes back to her hometown a lot, busy with work, meets friends here and there, but she never mentioned this person to me.

My mind's racing. I woke up in the night checking how her phone was left on the bedroom table — that weird feeling when an unclear image cuts right through you, but the feeling itself is crystal clear. So confusing.

I'm not an overly jealous guy, but I also don't want to be a fool. Should I ask her straight up, or am I overthinking? I'm scared that if I press her she’ll get defensive or blurt something that turns into a huge fight. Maybe I should wait for clear proof before I bring it up, or should I talk now? Asking bluntly — is that too much?

Has anyone been through this? Share please. I'm so confused lol.