<human>: Can you condense the text into three sentences or less?

After a very long period of procrastination, I've finally had it with my relationship. I decided that I wanted to end it a few months ago but it's taken me until now to truly want to get it done.

There's not necessarily anything BAD about it, which is why it's taking me so long to deal with it, it's just not working for me any more, it's a pretty classic case of just needing to move on. Obviously our lives are very intertwined and we share many friends, so I want it to be honest, and respectful. I know she'll hate me for a while but i'm sure someday down the line we can be friends.

I've put it off for far too long and I am more ready than I have ever been to have the conversation,

Here's the catch:
We both have tickets to a music festival next weekend. We are planning to drive with one of her friends, but i have many friends going as well. 

I know it's kind of a dick move to end it before a trip, but on the other hand I've been making these same rationalizations for months. The festival is big enough that we probably wouldn't see each other, but if we did I could foresee some ugliness.

I know it seems like "Man, you've been dating for 3.5 years, i'm sure it can wait another week", but I have been thinking about this for WAY too long, and I don't think I can fake it any more. I already feel guilty for not acting on this sooner, it's disingenuous and not fair to her.

Do I break up with her asap or do I wait until after the festival?
<bot>: I have finally come to terms with wanting to end my 3.5 year relationship with my girlfriend, but we are going to a music festival next weekend. Should I do it now or wait until after?