Affair turning him on ?

Has this happened to anyone?! Well this how it goes. We have children , Im a stay at home mom for now recently a friend “female” from hight school “ longgg time ago” asked me to take her somewhere and of course i did ive kept in touch with her we live close by . I told my hubby i was going out and stayed a big longer than i expected . That little freedom felt good because i didnt have the kids and was out on my own in a really long time. Anywhoo i came home hubby mad as hell waiting on me and questioning everything i did as far as to ask for my phone. I didnt do anything but hang out with this girl and he thinks i stayed out with some man. Two days pass and he tells me he hasnt been this turned on for me in forever . Hes still thinking i went out and cheated but has the super hots for me now doesnt want to stop having sex and im so confuse.