Am I considering divorce?

I'm a 33-year-old woman, and my 32-year-old husband and I have been experiencing some really tough months. He has a close friendship with a female coworker, and I've expressed my discomfort about her texting him daily. To sum it up, he made me feel like I was being jealous or needy for bringing it up, until the work Christmas party when she revealed that she has feelings for him. This situation isn't just a one-time mistake; it seems to be a recurring pattern for him. We've been together for 13 years and have two young kids, ages 6 and 4. Throughout his various jobs, he has developed close friendships with female colleagues. I want to clarify that I genuinely believe he hasn't cheated on me. We have each other's phone passwords, and I don’t think he would betray me in that way. However, he has hurt me by disregarding my feelings and continuing behaviors that make me uncomfortable. We're currently going through a separation, and he plans to move out soon. I'm coming to terms with the idea of not being together, as I’ve felt lonely for quite some time. He and I don’t seem to be on the same page when it comes to intimacy, and he doesn’t show much affection. Despite this, I still have lingering doubts about whether we should try to work things out. I recognize deep down that we may need to separate, but I can’t help but wonder if I’m making the wrong choice.