casanova

As an adjective amorous

is inclined or having a propensity to love, or to sexual enjoyment.

As a noun casanova is

a man considered romantic and gallant, especially one who gives amorous attentions to women.

As nouns the difference between gallant and casanova

is that gallant is (dated) fashionable young man, who is polite and attentive to women while casanova is a man considered romantic and gallant, especially one who gives amorous attentions to women.

As an adjective gallant

is brave, valiant or gallant can be polite and attentive to ladies; courteous to women; chivalrous.

As a verb gallant

is (obsolete|transitive) to attend or wait on (a lady).

As an adjective romantic

is romantic (pertaining to the romance era).

As a noun casanova is

a man considered romantic and gallant, especially one who gives amorous attentions to women.