I'm talking to this girl and at first everything was going well so I decided to put her on offense but I got kinda bored and change the conversation but I just realize that when I did it looked as if i was a caward who surrounded to her. I try to to regain myself but shit got heated up and I ended up going soft and sucking up to her and cause of that she walked away. I don't want this to be over how can I reopen her ?

dont really understand what you mean by putting her on offense here...
But if you think you lost some value here.. then try reconnecting by statements rather than questions... for example , instead of reopening by saying a question like -- "what do you think.. blah blah.." OR " do you now where this... blah blah.. .. is.." Try some statements like -- "I am watching my pizza float on greese" or "Traffic in [your country] is brutal... i need a helicopter..."
this would let you gauge her reaction and basically you need to stay in her radar by these statement texts until what all you messed-up cools off... then when the temperature amongst you two, again seems inviting then you can continue to game her as usual.

_________________
-- Jack
Patience and Calibration are the keys for the perfect seduction
[++ reputation if this seems the right thing to do ]

I'm reading the game and i record styles saying that he speak to woman by using statements so I decided to do it, not unless I really have to ask a question