For some words referring to women's "sweetheart", it is best to have the source of ancient poetry. The more subtle, the more literary. Such as "re-entry".

Lover. My tall building rises from the garden, my lover holds a halberd in the bright light, and tears fall in your eyes. I hate not seeing each other before marriage.

Lang. When you, my love, ride a bamboo horse, run in circles and throw your childhood. Living together for thousands of miles, we are both young and happy.

Childe. A stranger is like jade, son chinese odyssey.

That's all I can think of. Excuse me.