Love is blind
This means that when you’re in love with someone, you overlook or don’t notice their faults and imperfections. You only see the good things about them.
Puppy love
Puppy love refers to the love between teenagers or a first love, which can be more of an infatuation. This type of relationship, with intense emotion and desire, lacks the maturity and commitment of an adult relationship and is often short-lived.
To be smitten
phrase “to be smitten” is often used to describe the state of being deeply infatuated or captivated by someone or something.
A heart of gold
A sincerely kind and generous person.
Main squeeze
The only person you're dating.
Love at first sight
When you feel a sense of instant romantic connection the very first time you lay eyes on someone, that’s love at first sight according to this saying.
Love will find a way
means that if two people who love each other really want to be together, they will find a way, even though it may not be easy.
Lovesick
While sickness isn’t exactly something you’d hope to associate with the warm, romantic feelings you experience when you’ve developed a crush, this has become a common way to say that you’re so in love with someone
Eat your heart out
Making someone feel jealous by looking very attractive in front of them.
They're an item
They're in an exclusive relationship
You are the apple of my eye
This is a profound way of stating that the person you love is the most treasured, adored person in your life and incredibly precious to you.
Dog days
Butterflies in the stomach
Butterflies in the stomach. A nervous, fluttery feeling, often when in love or thinking about someone you love.
Having a heart-to-heart
Having a very honest conversation.
Love bombing
Providing endless compliments and praise to someone to the point of discomfort.
Love is blind but the neighbors ain’t
This cautions that although you may be blind to your lover’s faults, other people around you can likely still see them clearly.
Let sleeping dogs lie
Let sleeping dogs lie. If a situation or problem has settled, then don't interfere and make it worse
Take my breath away
Tugging at your heartstrings
Making you feel guilty or sympathetic.
May-December
A relationship with a large age difference between the partners.
A Sight for Sore Eyes
This refers to spotting someone or something that you are very pleased to see.
Love me and love my dog
If you are going to love someone, you must accept everything about them, even those aspects, qualities, or faults that you might otherwise dislike
Absence makes the heart grow fonder
means that people’s feelings for each other grow stronger when they are apart.
Wear your heart on your sleeve
Openly show your emotions with no qualms.
Carrying a torch
Still having romantic feelings for someone you're no longer with.