We argued quite a lot despite being good friends, still I loved him with all my heart.
We flirted quite a lot despite being good friends, still he told me he was just "joking around". 
We were quite far away from each other despite being good friends, still I felt him holding me when we were talking. 

Thing is, he didn't give a shit about me. It took me a while to realize that he didn't care about me, or my feelings at all. And the funny thing is, I could have given him the world if he had asked me to...

Dear me, 

You shouldn't have wasted your time with him. 
You shouldn't have spent a lot of time with him.
You shouldn't have fallen in love with him. 
You shouldn't have said things you didn't feel.
You shouldn't have kissed him. That was your biggest mistake. 
You shouldn't have cried so many times because of him.
You shouldn't have felt guilty because of him. 
You shouldn't have let him play with your feelings. 
You shouldn't have told him everything was okay.

You shouldn't have... but you did. 

But, are we talking about just one guy or... two?