The word "romance" is used when people are attracted to each other in some way.
Valerie loves romance.
Roger wants more romance in the relationship with his spouse.
Olivia and Peter have been involved in a secret office romance for three months. (office romance = a relationship at a place of work like an office.)
Romance can lead to a broken heart.
There’s a lot of romance at the beginning of a love relationship.
What is a marriage without romance?
Romance novels are very popular among women.
Some people say that romance is overrated.
The word "romantic" is an adjective. This word can be used for people or things:
We visited a very romantic part of France last year.
The lighting in the restaurant is romantic.
This music is very romantic.
Romantic comedies are popular among people who like to watch movies.
Romantic moments help to strengthen a relationship.
Claudia wishes her husband were more romantic.
Samuel has romantic ideals related to helping those who are in need. (This use of the word "romantic" refers to a person who is idealistic, seeking some form of perfection, beauty, or nobility.)
The word "romantically" is an adverb:
Those two are romantically involved.
They’re interested in each other romantically.
Sarah and Isaac are romantically attracted to each other.