The idiom "absence makes the heart grow fonder" means that someone may miss or long for someone more when they are away, even if they didn't appreciate them much while they were present. The phrase implies that time apart can bring about a deeper appreciation and affection for someone.

The idiom "long run" refers to a period of time that is extendable into the future, often referring to the effects of a decision or action that may not become apparent immediately but will have consequences over an extended period.

The idiom "get to know someone" means to become familiar with or acquainted with a person, place, thing or situation. It refers to the process of learning about someone's personality, character, habits, interests, etc., usually through social interaction and communication.

The idiom "hang in there" means to keep going, persevere, or stay the course in the face of difficulties, hardships, or challenges. It encourages someone to hold on tight and not give up hope even when things are tough.

The idiom "speak soon" is used to tell someone that you will communicate with them or inform them about something at a later time. It's a polite way of acknowledging their request while not committing to a specific time frame.