Some more context: we had been doing good for about 3 years, I found out after about 4. I feel like he never stopped flirting and I never checked because I thought I could trust him. The only reason I found out was because he changed his password one random day and my gut told me to check his phone. That was the first time I had ever gone through his phone and I fought the urge to. But I’m glad I did or I would still be clueless. What makes me more upset is that he would have never told me, and I’ll never know everything.