Name changed as a bit outing...
First of all, don't have a problem with age gap relationships between adults at all. Neighbours moved in a year ago with a baby and a toddler. Obviously an age gap between them, she is early twenties and he looks mid/late thirties. They are devout Catholics, go to church loads and a bit preachy and made a couple of comments about us bringing kids up athiest but other than that are ok.
Anyway, I spent a bit of time with her and she has told me a bit about her life including sexual abuse as a child including rape. I was obviously sympathetic, she is very matter of fact and believes herself to have Asperger's but no diagnosis officially.
The other day she said it was their wedding anniversary, five years... I was surprised so long and she said they married when she was 17, but had been together since just before she turned 15. He would have been 30. (He left his wife and two daughters for her!) Given her history, in my mind she was vulnerable and a 30 year old behaving in this way is a bit gross, not to mention illegal. I now feel uncomfortable around him, especially since they overlook our garden and we have teenage daughters. Obviously it's none of my business and I'm not sure if I am overthinking things but my skin crawls when I see him now. I know I am judging, but am I unreasonable to do so?