When who's different turnaround and be the same

I thought you're different, the one who's different. But you're not.
You just tease me with that different at the beginning, but I'm sink on your tease.
I care for you, but you don't. It's okay, but later, I feel so lonely and being self-stupid-ing like this.
Please be different again, don't be the same.
It's that you, or just me? Fuck life!