AHAAA! This sounds exactly what I went through! Only... when I took the risk, my life fell apart for a while. I was with a girl I was with for almost 3 years and this other girl comes a long. We were really good friends and sometimes she was flirty, so I decided, (since the other relationship was going really rough), to try dating the new girl. (My previous gf and I had brought up dating with other people, so I took a chance)
Long story short, I left a girl for another girl, who only ditched me in the end. Shoulda' played it safe.
I'm not telling you to follow in my direct footsteps, every situation is different. And perhaps your luck is better. I should have talked to the girl I was jumping for BEFORE I left the other girl. :stretcher: