The reason is because for some reason I have trust issues. I'm always afraid that I'm not good enough for her. Whenever I see her talking to another guy or close friend that's a guy while having a great conversation; I try to prepare myself for her leaving me for him. To the point where I imagine one day just seeing them holding hands and going out. This is why I could never love my ex girlfriend even though she loved me. How do I stop living like this? When I envision it, it's like it actually happened so it makes me feel bad all the time.. The reason it hurts so bad is because I like her too.