love life vs making love

love life and making love both are nouns.

Word	Noun	Adjective	Verb	Adverb
love life	Yes	No	No	No
making love	Yes	No	No	No

As nouns, love life and making love are synonyms defined as:

love life and making love: sexual activities (often including sexual intercourse) between two people

Other synonyms of love life include love, lovemaking, sexual love.

love life (noun)	making love (noun)
sexual activities (often including sexual intercourse) between two people	sexual activities (often including sexual intercourse) between two people