<human>: Give me the gist of the text in a nutshell

I was with a girl for almost 5 years, things were great for the majority of this time. Unfortunately, things eventually went down hill and we broke up probably about 8 months ago. At first I was pretty devastated as I was in the mindset that I was going to marry this girl and had plans to propose after graduating. 

After a month of having reminders of her, I eventually decided to completely remove her from my life and remove any means for her to contact me, mostly removing her from facebook and ignoring any attempts at contact from her...essentially dealing with it in an immature way. At the time I found this helped a lot as I pretty much completely forgot about her and I was doing quite well for awhile.
Met a new girl eventually and started dating about 2 months ago. 

Things were going ok, until I received a message from my ex out of the blue. We had a few exchanges back and forth and I realized that this was resurfacing emotions that I had learned to ignore. Ever since, she has been on my mind more than I would like to admit. All the while, this hurt my current relationship big time as I found myself less interested in my new girlfriend. 

Anyway, I am looking for advice on how to get over my ex and get my love life back on track. I've already accepted that I probably should end my current relationship as I am quickly realizing my head and heart aren't into it. But I need to be able to deal with this ex thing without merely suppressing my emotions.
<bot>: Got over ex by completely ignoring any evidence of her existence. Thought I was over it until reminders of her came back in, now affecting current love life.