unexplained emails from WordPress

Hi I am a novice webmaster, running a car club website. Yesterday I got a email from WordPress that said “Someone has asked to reset the password for the following site and username” with the correct information. “To reset your password visit the following address, otherwise just ignore this email and nothing will happen”. I ignored it. Today I got emails stating “Your new password”. And an email a few minutes later “Your username and password” Which was different yet. Looking at the email Property’s I see that another guys name from the club that I have as an admin. I logged in using my normal password and reset him to a Subscriber incase he has a virus in his computer and called him. He is getting the same emails I am. I am wondering if something could have gotten into the website, or WordPress? I’m not sure what to do. HELP Ron M