Ephesians 5:28

28Soοὕτωςoughtὀφείλουσινalsoκαὶοἱhusbandsἄνδρεςto loveἀγαπᾶνtheτὰςof themselvesἑαυτῶνwivesγυναῖκαςasὡςtheτὰof themselvesἑαυτῶνbodiesσώματα·The [one]ὁlovingἀγαπῶνtheτὴνof himselfἑαυτοῦwifeγυναῖκαhimselfἑαυτὸνlovesἀγαπᾷ,

So also husbands ought to love their own wives as their own bodies. The one loving his own wife loves himself.