love life vs sexual practice

love life and sexual practice both are nouns.

Word	Noun	Adjective	Verb	Adverb
love life	Yes	No	No	No
sexual practice	Yes	No	No	No

As nouns, sexual practice is a hypernym of love life; that is, sexual practice is a word with a broader meaning than love life:

love life: sexual activities (often including sexual intercourse) between two people
sexual practice: activities associated with sexual intercourse

Other hypernyms of love life include sex, sex activity, sexual activity.

love life (noun)	sexual practice (noun)
sexual activities (often including sexual intercourse) between two people	activities associated with sexual intercourse