So i've know this girl since our freshman year of high school, we used to have an English class together and every day we would just talk the entire class about our families and our lives etc and we basically got to be really good friends. Come Sophomore year i confessed that i liked her over the phone and asked if she wanted to be my girlfriend (subtle i know) and she for some reason said yes. But back in those days i was a timid/wussy kid who got bullied and harrassed at school a lot and for some reason the next day when i saw her walking towards me from across the quad all the responsibilities of being a boyfriend just freaked me out and i started ignoring her.
Stop being a pussy. Jeez.
I wouldn't even bring up the past. Just be your present self and feel confident. If you want her, just tell her how you feel + actually have the balls to hold her hand. However, forcing it will trigger the "freaky" appearance and she'll dump you.