Husband suspicious behavior, or am I just crazy?

My husband and I have a new laptop that is not used for work that we share. My husband is an I T guy. When he set the lap top up he created two logins... one with his own password and my own password ....without me knowing. I realized this today when I went to use the computer. I asked him what was his password and what was mine. He gave me my password but refused to give me his because he said there was no reason for me to have his laptop password. My question is, 1 do you feel that him making my login/pw is controlling behavior? 2, is he being shady with creating his own login and not sharing his password? Or am I just being suspicious and questioning things and crazy like he says.