<human>: Hi. For a while I've been hanging out with my friend (Tom). We've been great friends through highschool, and are both currently in college.

To make this short, we were best friends, but it seems that as soon as I started working on myself and growth as a person he became extremely negative towards me, critical, and never really seems to want to kindle our friendship. 

I've given the relationship alot of effort but no matter what, it seems like there's no connection anymore. 

He's very close with a few other people who are the most immature people I've ever met, and it really brings me down that I have to spend time with them. 

Not to talk smack, but aswell as being negative, he's **extremely** insecure and seems to attract people that give him attention.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Roommate/former best friend all of a sudden stopped giving a fuck about our friendship as soon as I started really working on my success.