What's the difference between these two sentences?
"I only wanted your love."
"I wanted only your love."
The first means you have no other wants in life except to be loved by one person. You don't need food, clothes, money—not anything.
The second means you want one thing from the person to whom you talk: That is, "I don't want your money or your advice. Love is the one thing I desire from you."
Make sure you use only
to modify the correct words.