There are many issues to deal with here.
1. The girl should never get reht the shidduch before the guy.
2. One should never speak with single friends about their dating.
3. Nice of the Shaddchan to tell you that you can’t trust your friends. You can’t trust a shadchan either
4. When you date, ignore the concept of bashert. The gemarra itself states that there are two types of matches 1. mazal and 2. ma’asav (action) Leah knew that it was BASHERT for her to marry Eisav yet she cried her eyes out in prayer to Hashem asking not to marry him. WHY? IT WAS BASHERT! The answer is that mazal (i.e. what is in the stars) does not always work out. Eisav blew it, and Leah knew it, and Leah wanted no part of Eisav.
5. When it is meant to be, it will be. It was in July and I was in Europe for a friends wedding and subsequent sheva brachos. After one of the sheva brachos my friend asks me if I was interested in going out with one of his wife’s friends. I politely told him I did not think it was for me. Fast forward to February the couple is now in Israel and I am their guest for Shabbos Lunch. We speak a bit about shidduchim and the next day they call me to reht a shidduch. I realize on date 1 that it is the same girl they tried to set me up with during their sheva brachos (at that time they did not give me her name).
We got married. The lesson I try to use here is that one should never feel rushed before they are ready out of fear of “bashert”. If it is meant to be, it will be.
Additionally, zivug shaini (action) shows us that there is not necessarily just 1 person who would be our match.
Good Luck navigating the labyrinth known as the shidduch process. hatzlacha