Birds of a feather flock together
People who have the same outlook/tastes/interests will be found in each other’s company
A match made in heaven
A relationship/pairing in which each member/part perfectly complements the other
Love me, love my dog
If you love someone you must accept everything about them including their faults
To tie the knot
To get married
To go steady with someone
To be in a relationship with someone
Blind date
A meeting between two people who do not know each other, arranged in the hope that a romance might develop between them
Better half
Partner/spouse
The apple of someone’s eye
The person someone adores
To get hitched
To get married
To pop the question
To propose marriage
To go dutch
To share the cost of an outing or a meal on a date
Those three little words
The words ‘I love you’
Puppy love
Intense, new, and usually superficial love (often said in reference to love experienced by teenagers)
To fix/set someone up
To arrange a meeting between two people in the hope that they might develop a romantic connection
Lovey-dovey
Romantic and affectionate (often excessively so)
Love is blind
When you love someone, you no longer see/care about their faults
Head over heals
Intensely in love