DH has been unfaithful to me in the past - he has hooked up with girls while on overseas work trips and has continued chatting to them on Whatsapp when he got home. This was last year, I thought we were trying to work through our issues (mainly his dissatisfaction with our sex life). He's recently returned from another trip and I saw on Whatsapp that he had been talking to another girl. He admitted being in contact with her but said that's it. Yesterday I found some antibiotics in his bedside table that were clearly dispensed in the country he visits - but they are in a plastic bag, not in a box with a name label on. I googled them and they are used to treat, among other things, herpes and chlamydia. They are half taken. I can prove they are his, they could belong to other colleagues who also travel with him...but why would he have them if he wasn't taking them, or thought he might need to take them?