A spell to make someone like you is possible but generally frowned upon because you are forcing your desire/will/wants over that person. Morally this is wrong [but you have your own moral compass, so listen to it]
If you cast it successfully it is still not a permanent or guaranteed thing. She has free will just as you do. Some people are more strong willed than others, the key is to overpower their will. However, once this happens they will subconsciously fight against the spell meaning it could break in a day, week, year, decade or more, it depends on the person.
If you still feel like a spell, I would look into a honey jar, it will make her warm up to you, but you still need to try.