Thank you all for your input and sharing your experiences they are really supportive and make a lot of sense. It sounds like it can take time, and although I'm no longer with my ex he is still my son's dad - so still kind of around but I engage with him as little as I can. I guess it took me many years to get into this state of numbness, so it may take me a while to get out of it - it just becomes harder to validate my own feelings when I'm not in it anymore and there is 'no reason' - though maybe this is an echo from my childhood emotional neglect.
Chart mentioned the extremes of emotion, a couple of months into therapy I had a week of intense emotions - some I just couldn't identify, they were overwhelming,some were even warm pleasant feelings, but it was all at once (like someone turned on the taps) and I couldn't manage the intensity or understand it - and I numbed out again. Sounds similar to your experience, nice to not feel alone in this experience.
Chart mentioned the extremes of emotion, a couple of months into therapy I had a week of intense emotions - some I just couldn't identify, they were overwhelming,some were even warm pleasant feelings, but it was all at once (like someone turned on the taps) and I couldn't manage the intensity or understand it - and I numbed out again. Sounds similar to your experience, nice to not feel alone in this experience.