Should I not talk to him about my ex of 15 years?

I just got out of a divorce of 13 years. We were together for 15 years. We have four kids together and he has moved out of state. I do not have many good things to say about him and I find myself venting about new stupid shit he has said lately to my boyfriend. For example him telling me my money struggles are not his problem because he pays no support or gives any help to take care of his kids unless he is in town visiting once every month or two. How would a guy feel about this? He vents to me about his ex wives and the shit she had put him through or puts him through. I will also tell him about the abuse he had put me and my reasons for leaving him. Just want to make sure this isn’t a turn off and will push him away.
Should I not talk to him about my ex of 15 years?
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