Nouns, nouns expressions

a dating app – an online dating service presented through a mobile phone application.

a blind date – a date with someone you have never met.

chemistry – a strong mutual attraction.

a green/red flag – a sign of a healthy relationship/ a warning sign of toxic behavior.

ghosting – ending a relationship by stopping all communication without explanation.

love at first sight – the experience of starting to be in love with someone as soon as you see them for the first time. 

matchmaking – the process of pairing people, introducing to each other for dating or future marriage.

Verbs, phrasal verbs

to ask sb out – to invite someone on a date.

to break up/split up – to separate.

to cheat on sb – to be unfaithful.

To court sb – to actively show affection to a person with the explicit intention of forming a committed, long-term relationship.

to date sb – to go out with.

to dump sb – to break up with sb (informal).

to get on – to have a good relationship.

to get to know sb – to meet.

to go out with sb – to be in a romantic relationship.

to hug – to embrace.

to propose to sb – ask sb to marry.

Verbal expressions

to be in love with sb – to love sb.

to be on good terms – to get on, to have a good relationship.

to fall in love with sb – to start loving sb.

to be engaged – having formally agreed to marry.

to get divorced – legally dissolve one’s marriage.

to get in touch – start communicating.

to get married – to legally or formally become husband and wife.

to go on a date – to meet someone for a romantic engagement.

to have an affair – to engage in a secret romantic or sexual relationship with sb other than one’s partner.

to have a fling – to have a short-term, sexual or romantic relationship that lacks deep emotional commitment.

to have a lot in common – have a lot of shared interests or characteristics.

to hold hands – to keep someone’s hand in your hand, for example to keep them safe or to show that you care about them.

to lose touch – cease to be in communication.

People in relationship

an acquaintance – a person one knows slightly.

a crush – someone who you like a lot romantically, usually someone that you do not have a relationship with, or not a serious relationship.

an ex – a former husband, wife, or other partner in a relationship.

a fiancé – a man to whom someone is engaged to be married.

a fiancée – a woman to whom someone is engaged to be married.

lovebirds – an openly affectionate couple.

a soulmate – a person ideally suited to another as a close friend or romantic partner.

Idioms, set expressions

to be a match made in heaven – to be a perfect couple.

to be head over hills in love with sb – to be completely, deeply, and passionately in love with sb.

to be on the rocks- to be having problems in a relationship.

to be on the same wavelength – share the same attitudes, and understand each other very well.

to be out of one’s league – someone or something is too good or expensive for someone to have.

to have a crush on sb – to have a strong, often temporary, romantic attraction or infatuation for sb.

to have a soft spot for sb – be fond of or affectionate towards; like.

to go the extra mile for someone – to make a special effort or do more than expected to help or please someone.

to go through a rough patch – to experience a difficult or challenging time.

to play hard to get – to pretend to be less interested in someone or something than you actually are, in order to make the other person try harder to win your attention or affection.

to tie the knot – to get married.

More phrasal verbs

To fall for sb – to begin to have romantic feelings for sb.

To fall out – to argue, to fight.

To hit it off – to quickly become good friends with someone or get along really well right from the start.

To hit on sb – to show romantic or sexual interest.

To lead sb on – to make someone believe you like them more than you actually do.

To make out – to kiss.

To set sb up – to arrange a date for someone else.