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

Basically, I was in a relationship with a girl for 5 months, and towards the end we had a few issues which I was willing to work on, she wasn't. We never really stopped talking, one of us would cave in after a few days when we did try. Her friend recently spoke to me and said my ex was very interested in giving it another shot (quoting her, 'I just want X'), but was scared. I confronted her about it, asked what she wanted, but she never really gave me a proper answer because she claims she doesn't know what she wants. I suggested that we meet for coffee and see how things were and if we could make it work again.
This is when it gets frustrating. Her friend, we'll call her E, always had a problem with me for no apparent reason - she was from a village outside the city I live in and so I'd never had any interaction with her or any of her friends prior to meeting my ex. Turns out, they were having an argument about it and apparently I am manipulative (which was news to both of us). E said that if my ex even met up with me she would completely cut her off. So basically she had an ultimatum, it would either be her best friend or me... She did eventually agree to meet up with me for coffee (which we will be doing soon) but even if it goes great, will her 'best friend' not just guilt trip her out of it? 

How am I meant to get anywhere with this girl, if E will always hold us back and make things difficult? I know it seems very childish, it even seems very childish to me - but I am very much in love with this girl, she was my first proper girlfriend and I want to show my ex how terrible her friend is being, but just don't know quite how to deal with it.
<bot>: relationship ended after 5 months, ex (who ended it) wants to get back together but has been given an ultimatum by her 'best friend' stating that it's either me or her.