Likes/dislikes contribute but aren't deal breakers in dating someone, you can date someone who dislikes all your characteristics. It can just take a long time to get the option to propose a relationship! Like a month or 2 of ingame time. Just keep going on dates and you should eventually get the option, but note depending on their inclinations they may not accept an exclusive relationship. They might prefer an open relationship, poly relationship, Dom/Sub relationship, or a fuckbuddy relationship.