Hi everyone, first time posting so sorry if I mess anything up, I’m not great at writing. I’ll just tell it straight because I’m still hella confused, seriously.

I’m 40, run a small online shop in Hua Hin. Been with my girlfriend four years, met at a trade fair around Cha-am. We’re chill, no big ceremonies, but there’s some trust between us. First couple years we met a lot. Lately my work’s picked up — packing late, driving deliveries — so we see each other less. Never thought something like this would happen though.

It started last night. We planned to drop some stuff off at the mouth of the soi then drive to deliver parcels together. My car’s in the shop so we used hers. We stopped, got out to lift boxes, then when I got back in I noticed a small bag loosely tucked under the back seat. I pulled it out to look — it was a little black fiber bag. I looked through it for maybe 15–20 minutes, took my time.

I found a hotel booking slip for a Bangkok hotel dated two nights ago, time around 9:45–10 PM. I don’t know the hotel or the number. When I read it I went dry-mouthed like I’d been punched. Totally stunned. There was a long black hair stuck on the corner of the paper, like 25–30 cm. My girlfriend keeps her hair short.

I didn’t yell or argue right away. I just sat there quiet, my phone buzzed twice then stopped. Was I imagining things? I put the slip back where I found it and we drove to deliver the parcels like normal, but it kept playing in my head all night. My mood was just gloomy and weird.

Next morning I asked her straight up if anyone stayed at a hotel two nights ago. She said no, she hadn’t been to Bangkok, she stayed at her relative’s place, alone, no visitors. I asked about the slip in the car — she said she didn’t know whose it was. I asked her to open the bag so I could see. She opened it and fumbled, said maybe it belonged to a female friend from the provinces who left it there. The answer didn’t hang together.

Later that day I picked up some returned goods from the warehouse and found a small box of chocolates tied with a red ribbon inside one of the returned parcels. The receipt attached had a woman’s name I didn’t recognize, not anyone I know, though the name sounded familiar from a nearby province. I don’t snoop through my girlfriend’s socials usually, but I couldn’t stand it so I quietly checked her Facebook (not messages, just public posts). Found a couple photo from a seaside café two days ago — looked normal, but the coffee cup had faint red lipstick on the rim. Felt strange as hell.

I tried talking to her calmly again and asked who that female friend was. She jumped and said the name, but sounded unsure, said they met at a trade fair and don’t hang out much. I wanted to believe her, but when I mentioned the hotel slip and the chocolate she got uncomfortable and said it was a thank-you for help with work. Help with work? Maybe. But why a hotel? Why a receipt?

I surprised myself by almost wanting to cry, which isn’t me. Maybe I’m overthinking, but my heart’s been restless and I feel kind of lied to. At the same time I want to believe it could be a misunderstanding. I asked if she wants me to stop being suspicious — she said she wants me to trust her, but didn’t explain clearly or deeply. It felt like I was asking something simple but for her it wasn’t easy.

I didn’t shout or cause a scene, I just wanted honest answers. Her answers made me more confused. I’m still lost about what to do. Feels like I have to make some decision but I’m scared to make the wrong one. Am I overthinking? What would you do — push her to open up fully, give her time to sort it out herself, keep the things I found as evidence, or confront them directly?

Sorry for the long messy story, I’m still shocked and wanted other perspectives to know what’s best for my heart and this relationship.

P.S. I’ll update later haha T_T