He called my dog by a different name and it rubbed me wrong. Later that week he got a flirty text from his coworker and told me she was obsessed with him but he kept turning her down 🙄 (ya ok) I looked her up on Instagram and she had a dog with the same name as the one he had accidentally called my dog.

The dog loved every guy that ever stopped by the house. 

Except one. 

She would bark at him, look at me, and then continue barking at him. 

Checked wife’s phone. Filed for divorce a week later.

The way they stopped including me in their future "we" sentences. it wasn't a fight or anything big, but suddenly it was 'I’m going to do this' or 'I might move there' instead of 'We should do this.' The future just started shrinking until I wasn't in it anymore.

I got a text explaining the (intimate) things she was looking forward to us doing later that night. It got deleted as I was reading it. When I replied asking what she deleted she said "sorry. It was to remind (sister's name) not to forget we have to get mum a present this weekend and I sent it to you by mistake."
A 12yr relationship was ended right there.

Playing mind games / doing tests, etc.

I have absolutely zero tolerance towards those. If I spot a potential candidate doing that, I immediately lose a lot of respect towards him/her and become suspicious. The second time I see him/her trying to pull off some kind of similar stuff, it's time for goodbyes.

I'm looking for someone trustworthy and with whom I can be at ease. Not someone who tries to provoke a fight every day.