admirer
1. One who admires, wonders at, or views with surprise and pleasure, or with pleasure only.
2. ‘In common speech, a lover.’ J.
a1704 T. BROWN Comical View Wks. 1730 I. 163 'Tis by your beauty that you make so many of your admirers hang and drown themselves every year. 1874 BLACK Pr. Thule 35 Vexed by the incomprehensible conduct of her reputed admirer.