i think you are psyching yourself out, just like you think you are. that you are afraid of making the wrong decision. afraid of rejection. afraid of taking a risk, making yourself vulnerable. you were in that first relationship and left it because it wasnt working, you werent happy. then you saw here with someone else, in love and happy. you pictured that that was once you and questioned your decision to leave it, FORGETTING that that wasnt the condition of the relationship WHEN you left it. you were remembering the "so in love" times, but that wasnt the true nature of the two of you. the true nature of the two of you was the six months of arguing and unhappiness that led to your split. i am sure you didnt make that decision lightly. but that is easy to forget when you are seeing the "so in love" in your face with your friend. so this led to you questioning your judgement and not trusting yourself. being hurt and not willing to risk again. not wanting to go through all that hurt and pain again. while it may have gone on for a while, you did get over it. the reality is, it will happen again. it is part of finding the right partner. you have to take those risks, you have to get hurt, but you do heal and move on. you enjoy the time while it lasts and if it turns out not to be working you make a healthy decision to leave before you hurt one another. it sounds like you are playing games with this new girl because you are scared. if you like her, text her. if you are too afraid to get in a new relationship, seek help to work out your issues. you dont have to profess undying love and fear rejection, just talk about the weather, your goals, plans, what you like to do and ask her the same and see how conversation goes from there. develop a friendship. you dont have to jump immediately into a relationship.