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