Is my 53-year-old ex-womanizer boyfriend truly ready to settle down?

I'm 49, My man is 53. He has been with a lot of women in his lifetime, I have been with less than 10 guys. He said he was a womanizer but never cheated unless they did first. He now claims he is ready to settle down and be with one woman but thinks it's okay to meet his ex in a hotel room while he was in town and says I'm crazy and have a "guilty conscience" that I automatically assume anything besides talking happened! Am I immature? Petty? Crazy? Or is this behavior fine? And will he actually ever settle down?;
Is my 53-year-old ex-womanizer boyfriend truly ready to settle down?
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