<human>: Can you condense the text into a few key points?

Here's a link to my first post to provide a bit of background to what I'm talking about: 

I think at some point in everyone's lives people find themselves in some sort of toxic, unhealthy friendship. For whatever reason I (age 22) keep finding myself drawn to these shitty people. I have gotten really good at identifying toxic relationships, yet I can't seem to retain my resolve when it comes to keeping them out of my life... This is typically the case in my friendships with other females. My next door neighbor, an all-around unpleasant, toxic person is having a party tonight. And for whatever reason I find myself incredibly upset I am not there - I got an invitation on facebook, but I am trying really hard not to just sweep things under the rug, and it really offends me that she doesn't respect me enough to sit down and talk with me like she said she would. By attending this gathering (If it were even possible, which it is not) I would effectively be sweeping things under the rug and I would become trapped in this cycle all over again. 
Yet I can't stop feeling down on myself for not being there. I legitimately feel like a loser even though I recognize that these are people who I shouldn't want in my life. (It definitely doesn't make it better that they live right across the hall.)
<bot>: Reddit, how can I get better at realizing 'no company is better than poor company'? And why am I continually drawn to these types of relationships with other females?