Here is the full list of all 10 Never give up! achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
I'M STAYING WITH YOU
WE'RE TOO DIFFERENT
I'M LEAVING SO YOU CAN BE HAPPY
MY LOVE SHOULD STAY SECRET
PLANS FOR THE FUTURE
OUR FIRST LOVE
OUR FUTURE TOGETHER
TOGETHER FOREVER
MAKE THE FIRST MOVE
MEET EACH OTHER HALFWAY