When I'm in love, I'm usually way too into them.
My kid has been reading romance novels all the time lately.
Parting from someone you love is always painfully bittersweet.
When you have romance and love all in the same package. Well, that is love! Ah, love! This is the word used when talking about love, though. You don't use this to say "I love you."
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.