<human>: I'll kv this short and simple. She openly left me for another guy. This was 2 months ago... and I still think about her and become very sad. The reason I'm looking for insight is because I've been left by a girl before for the same reason. She and I dated for 3 years but it only took about a month to get over it. What is so different this time? It feels like I'll not be happy again. It's confusing and disheartening. 

On top of that, I really need some help with this whole "love yourself" thing. I'm the type of person that feels lost and that there isn't much to care about without someone to enjoy it with. But all I ever hear is how that's not the right way about it. Then I see the people who claim they truly do love themselves and that's all they need. I can honestly say I don't share the view.  I need things to make me happy. But I can also honestly say that I want to share that view. I want to figure out it and have a deeper understanding of it all.

Can you give me the gist of the text in a nutshell?
<bot>: still hurt from being left and looking for a better grasp on the healing and a better grasp on love and loving myself. Thank you for reading.