A
Piece of cake
On cloud nine
Extremely happy
Heart on your sleeve
Openly shows feeling
Hit the jackpot
Achieve big success
Cost an arm and a leg
Very expensive
A walk in the park
Very easy and simple
Butterfly on the stomach
Nervous/Exited
Break up
End a relationship
Back in the game
Return after a setback
Worth its weight in gold
Something or someone extremely valuable
Up your game
Improve your performance
Break the ice
Ease a tension
In the same boat
Share the same situation
Bigger fish to fry
More important matters
A dime a dozen
Very common
Bitter pill to swallow
Something hard to accept
Head over heels
Deeply in love
Walk on eggshell
Be very cautious
Bite the dust
Fail or die
Pay through the nose
Pay much more than a fair price
Cutting corners
Doing something poorly to save effort
Match made in heaven
Perfect couple
Cold shoulder
Beat the odd
Succeed despite difficulties
Nest egg
Money saved for the future