because if you love her you could have married her and went with her to the philippine but you simply left her go by her self.
This for me could mean also that you had a problem with her or some arguments which makes life impossible between you and then you thought what is the best way to get rid of her so the idea of sending her to complete studying in the philippine was a good solution for you.
If you love some one then you never leave him.
If you love some one then you sure want to marry her.
It is simple you could have planned for wedding during the four years but you did not want.
All the above would make your story unrealistic.