Not sure how I feel

Two months ago I found out my husband was looking into only fans and had been watching porn our entire relationship (married 5 years, together for 9). This isn't the first time that this has happened and we discussed it before and he knows it's a boundary in our relationship. Later he told me that he isn't happy with me or our marriage. He agreed to go to a therapist but hasn't yet. I've had a lot of thoughts about divorce because he doesn't seem to want to change. After installing a porn blocker on his phone and computer he told me that he's still been watching it. I'm not sure what to do with my marriage and now I feel like I've fallen out of love with him. I've also recently become very sexually attracted to my boss, who is twice my age, I'm 25 and he's 52. I believe my boss has been flirting with me for a while now but I'm not sure. I feel like I do everything for my husband. I constantly put him first and this is what I get in return.