Halacha from the Heart

Does Yehiyu L’ratzon come before or after Elokai Netzor and/or personal requests at the end of Shemoneh Esrei?

The man didn't stay in quarantine, the police came to look for him. What did his wife do?

I regularly daven that my friend will find a shidduch. May I do so, mentioning her name, on Shabbat?

My two-year old loves sifrei Torah and when he is with me in the Beit Midrash, he is sometimes adamant that I take one out and show him the writing. May I do that?