Homework: Talk about the most annoying experience you have.

I was under a lot of stress when I was arguing with a realtor.
I have lived alone in a studio apartment an = a year ago. And I should have moved to another place to live with my friend together. = I should have moved to another place and live with my friend together. So I should have found another person who will live in my old apartment. = I should have looked for a person who could live in my old apartment.  I put my place on the market and it was associated with several estate agents. = I put my place on a stock market and got referred to several estate agents.
I found someone who are going to contract for the studio. = Ifound someone who was willing to sign a contract for a studio. But, 10 minutes after she had contracted, one of realtors called me, and complained me why didn't I tell her the studio was sold out. = However, after the contract was signed, one of the realtors called me and complained why I didn't tell her that the studio was sold out.  Because it happened just 10 minutes before! Furthermore, I don't have any duty to tell her if it's sold out or not before she asked me. She seemed to be very upset, and I even felt like I did a mistake, but I didn't. = It just happened in 10 minutes before she ranted. Besides, I don't have any obligation/duty to inform her whether it's sold out or not.  She seemed very upset. I felt like I made a mistakes but I didn't.
She's just upset because she made an appointment with someone who would like to browse my studio, and the customer were complaining to her about it was unavailable suddenly.  =She was upset because she made an arrangement with a potential buyer who'd like to check on my studio. The costumer was complaining because she found out that it was suddenly unavailable for purchase.
 But It is usual to contract suddenly. Because person who puts down a deposit first, is going to contract.  =It's usual in contracts. First interested person who would deposit money signs the the contract.
  I don't have any duty to wait for the person who just wants to browse around my place.
I was so young that I didn't know about contract thing for an apartment well, but the next renter was well acquainted with matters of this kind, so she settled this dispute.