So me and my gf have been dating for 2 1/2 weeks and i know our trust isnt strong yet but we both love each other. So yesterday she told me that she needed to go to her ex's house because he was feeling sad. Shes the type who cares for all her friends no matter what. I had a feeling in my gut that something had happened but i didnt want to say anything. I texted some of my guy friends to see what they'd say. They told me to break up with her because why would she go to his house and not mine. So i had a suspicion that she did something bad and sure enough, she told me she was mad sad and confused. She then told me that he had kissed her and she left before anything more happened. I think she liked it because she became confused about it and i feel a lack of trust now that she would probably do it again. Can you help me out?