Vctory OngDo native speaker use this word as the word like?
Yes. enjoy is similar to like.
I enjoy talking [to you / with you] because you have good manners. I enjoy talking [to / with] my [boyfriend / girlfriend]. I enjoy being an English tutor. I enjoy teaching English. I enjoy doing yoga. I enjoy doing stretching
I too cannot think of a way to express what you wish to say without writing endless prose. Sweetheart, out of the two you have given, is the best option. It does not state a relationship of any kind but simply describes a person as warm hearted and loving.
You could I suppose say "I was her admirer". Thus indicating you had feelings for her but she has not yet returned them, therefore yo