Due to the complex honorific system used in the Korean language, how you write "my love" is going to differ depending upon the gender, occupation, and ages of you and your love. For example, a young female student whose love is an older male teacher would write "my love" different than a young male IT technician whose love is an older female sushi maker. Conversely, the older male teacher and older female sushi maker would write "my love" differently to their loves.
You need to ask a native Korean speaker and give her the above information.