<human>: Give me a shortened version of the text

Male and Female had been great friends.  

One (M) developed feelings for the other (F) and one did not reciprocate.  

The two remained good friends for years, however as time goes on the emotions clash.  

A semi-mutual, never really spoken about, but understood parting of ways happened as both of their lives went on.  

Both enter relationships around this time and those respective relationships last a couple of years each.  

One of these relationships end (F) and they begin another, supposedly crappy, relationship.

After almost three years of little communication and barely seeing one another the two run into each other at a party.  

Love is professed by the formerly unwilling side (F).  

This messes with head (and relationship) of the other side (M).  

Reddit post ensues. 

I assume these things typically turn out poorly?  Are there success stories?
<bot>: Former Best Friend (F) professes love years after Poster (M) thought he was finally over her.  Poster is in relationship of 2+ years.