My girlfriend (22F) and I (21M) have been together for 2 years. I'm really struggling right now and could use some advice on a situation that just happened.
There’s this guy who she told me had a crush on her a while back. She swore to me she was ignoring him and that I had absolutely nothing to worry about.
Two weeks ago, I noticed she was wearing a t-shirt I hadn't seen before. I just casually asked where she got it. She looked me right in the face and said she bought it. I believed her and dropped it.
Yesterday, I was looking through some old photos in our chat and found a picture of that same guy who likes her. He was wearing that exact same shirt.
I confronted her immediately. Since I had the proof, she couldn't deny it and finally admitted the truth. She told me she secretly became friends with him behind my back, liked his shirt, and he just gave it to her.
I decided to walk away and end the relationship. She entertained a guy she knew liked her, hid the friendship from me, wore his clothes, and lied to my face about it.
Did I do the right thing by leaving or no?