"A drowning man will clutch at a straw" is an idiom that means a person who is in a dire situation and feels like they are on the brink of failure or collapse will desperately cling to any small hope, opportunity, or resource that may help them survive.

"Being in love" is an idiom that refers to the state of having strong romantic feelings towards someone. It can also mean being deeply attached or devoted to someone, whether romantically or platonically.

"Love at first sight" is an idiom that refers to the immediate and intense romantic attraction between two people upon meeting for the first time.

"On the horizon" is an idiom that means something or someone is about to happen, occur, or appear in the near future. It's often used to describe a situation that's not yet certain but has potential to be significant or impactful.

The idiom "spine-tingling" is used to describe a feeling of excitement, nervousness, or fear that makes one's spine tingle. It can also refer to a sudden chill or goosebumps.