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 LEAVING SO YOU CAN BE HAPPY
MY LOVE SHOULD STAY SECRET
WE'RE TOO DIFFERENT
PLANS FOR THE FUTURE
MAKE THE FIRST MOVE
MEET EACH OTHER HALFWAY
I'M STAYING WITH YOU
OUR FUTURE TOGETHER
OUR FIRST LOVE
TOGETHER FOREVER