Sneaking into her account and look at her things is bad.
However, lying to you is bad too.

Killing yourself over a gal? I look down at guys like this. If you don't even have confidence how are you gonna take care of others?

She doesn't want you anymore. Stop being obsessive. Just continue your studies and make more friends. Show her that you're a better man and even without her you can succeed.

Haha dunno good or not that you're laughing now

Hope you'll find someone who will melt your heart into one piece again