Onlyfans account okay for your boyfriend?

I just found out my kids father that I have been with 12 years has an onlyfans account that he pays to see other woman naked pictures and videos. And not just one he has paid over $100 (I stopped counting at that point) on this website on watching woman. I feel disgusted. Am I not enough? Is he bored of me? Or am I overthinking this??! I feel like now maybe it’s time to end things. Am i jumping the gun too quick? Help!!!