if you connect enough while they are teens and children, i dont know how much it matters to connect in the baby stage, they will automaticly become 4 hearts when you connect them and they are both adults. if they are the oppsite gender.
if they are the same gender they cant go above 4 smily faces.
i have never made my tamas connect to be 2 smily faces and 2 hearts B4, always when there are hearts there are 4.
How many times do you have to connect to switch from four happy faces to two happy faces and two hearts 
