Here is the full list of all 25 Sheep Love achievements.
Touch hands 100 times
Complete all achievements
Touch hands 30 times
Touch hands 10 times
Touch chest 100 times
Touch chest 30 times
Touch chest 10 times
Touch head 100 times
Touch head 30 times
Sage mode 1000 times
MeiMei went to heaven for the 1000 times
Sage mode 300 times
MeiMei went to heaven for the 300 times
Sage mode 100 times
MeiMei went to heaven for the 100 times
MeiMei favorability reaches MAX
MeiMei favorability reaches 75
Sage mode 30 times
MeiMei favorability reaches 50
MeiMei went to heaven for the 30 times
MeiMei favorability reaches 25
Touch head 10 times
Sage mode 1 times
MeiMei went to heaven for the 1 times
MeiMei favorability reaches 1