Something odd going on in the private mails

Hi, I sent a friendship request to 2 people this morning, one went to the intended person & the other to a third party. I have since tried to email them to explain the odd message which was not intended for them (they are on my list of friends anyway) & the message defaults so it goes to someone else again. Every time I try by clicking on "connect" & then selecting "send a message" it just comes up with another name.

What is going on? Anyone else got problems?