Suggested correction, hope that it helps!

A new cell phone

My girlfriend presented gave me a new cell phone for the New Year's holiday. It has a touchscreen, and a powerful processor, and we call this type of phones a "smartphone". I had told her that my old phone did not meet my requirements anymore was becoming too outdated, so she decided to please surprise me. But now she's not happy anymore, I think. I spend a lot of time playing games or downloading different applications or watching videos on Youtube instead of talking to her or and spending time with her together.
I know it this because she has already told me it so several times. So I think I should treat her better and don't not play with my new toy when we're together she's around me. How What do you think?

A new cell phone

My girlfriend gave me a new cell phone for the New Year. It has a touchscreen and a powerful processor, we call this type of phones "smartphone". I told her that my old phone did not meet my requirements anymore, so she decided to please me. But now she's not happy anymore, I think. I spend a lot of time playing games or downloading different applications or watching video on youtube instead of talking to her or spending time together.
I know it because she told me it several times. So I think I should treat her better and don't play my new toy when she's around me. What do you think?