Good job on confronting him and kicking him out the door. Maintain your boundaries.
Sweet Maria.. with all the hurt, trying to figure out timelines.. it's time to see the counselor. This is a lot to process and you heal better and faster working with a professional. It helped/helps me immensely. As hard as it is, try and let go of the images. It's like watching the devastation on 9/11 over and over again. If you can't stop it, it only gets worse.. and it will eventually hurt you deeper than anything he did.
Finding out the truth.. ingenious. Getting angry and defining your boundaries... great.. Letting go of his shitake and moving forward.. sublime.