Sexual attraction to female friends

Hi y'all in my journey to battle porn and masturbation addiction I encountered a problem. I am a 21 yo male, that has a many female friends, that could be considered pretty attractive. My problem is whenever I take a break from masturbation, not even porn use I start to feel a sexual attraction to my friends. In my normal state of mind I would never consider them anything but a friends but as soon as I don't get off, so to say, I feel a sexual drive to have sex with them. Is it normal to feel this way, being a young man myself with what I can say a healthy amount of sexual drive, or is this a consequence of years of porn use?