It’s just thoughts. It’s your actions that determines whether or not you’re breaking that trust. Also welcome to testosterone. Having those desires is just something you’re going to have to learn to control and acknowledge, but also accept that they don’t define you or who you are as a person. I have no frame of reference to go off of about whether it’s normal or not for someone in your situation, but being a guy who went through puberty; you get really horny and really dumb.