He seemed genuine…like really genuine
The reason why that will seem confusing is because people like this -
a) Might just be good liars
b) Might actually be genuine, but that doesn't mean you should go anywhere near them.
Maybe he does have PTSD, maybe he has stopped drinking, maybe he has got involved with unpleasant women in the past.....but that doesn't mean he is himself innocent in those scenarios. It is actually possible for someone to be both the victim and perpetrator of abuse in relationships.
Also, one of the most confusing things is that someone's values aren't always aligned to their personality traits, or their personality traits are very contradictory in other ways (which is why you'll hear women describe their partner as 'Jekyll & Hyde).
For example, someone might express genuine disgust at the fact that their father beat-up their mother in childhood, and think that violence against women is bad....but might go on to do this to their own partner!
I think you need to focus on volunteering more with your religious organisations, but you still need to be careful, even if men you meet in real life, and even with men who are religious who you think share the same values as you.
As to this man, you can just say you don't think you are well matched and you wish him the best of luck. Don't agree to be friends with him, because he won't be interested in friendship in the same way you are.