Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input:  

Throwaway account.

Somewhat recently a friend, we'll call him James, that I fell out of contact over a year ago was involved in an accident that killed another person due to his own gross irresponsibility and negligence (drunk driving). James has always been a fairly selfish and impulsive person, but fun enough to be around. A couple of years into our friendship he met a girl, who we'll call Ann, and they started dating and quickly ot married due to pregnancy. 

Before Ann, James had always been what people like to call "a player". He was always, ALWAYS flirting with some girl and a good amount of the women in our mutual friend group had slept with him at some point. During the first year of James and Ann's relationship, I was under the assumption he was being faithful, but this was also during a time where we didn't hang out as much due to conflicting schedules. It was after Ann had gotten pregnant that I finally started being able to spend time with James and heard rumors about him sleeping around and even saw some pretty blatant behavior as such on his part.

One friends night out, James started making passes at a mutual friend he had an ongoing affair with and Ann almost caught him. It was getting messy so I went outside, but Ann came out to smoke a cigarette. She began to ask me questions like "He wouldn't cheat on me right?" and I felt paralyzed. I was a drunk myself and eventually my dumbass came out with an answer that was essentially "I don't want to get involved." Which she took as absolute confirmation which then led into a crying, drunken screaming match at the bar.

Suffice to say there was ALOT of fallout from this that largely resulted in most people going "You shouldn't have said anything", "It wasn't your place", etc. After a couple of months things seemed to blow over. Ann and James were still together and most of our friends had stopped caring about the incident. James and I eventually got on good terms and began to hang out sporadically. I had never stopped hearing rumors and when we started hanging out again he did the same unfaithful BS. I felt bad for Ann, but was afraid to speak up and eventually drifted away from this entire group of people.

After I found out about the accident, I thought about Ann and texted her that if she needed any help to let me know. She thanked me and a few days later asked to talk on the phone.

She had caught James cheating again and just wanted to know if there was anything else she had been missing over the years because she was so paranoid and tired. I told her that I had seen a lot of seemingly unfaithful behavior and had heard rumors of even more and apologized for not saying something sooner. She was upset, but said she also felt relieved. Apparently my confirmation of her fears was the final push she needed and she would be talking to a divorce attorney.

So my question is: Am I the asshole for confirming all of her worst fears about her marriage after being a coward for so long?

telling an Ex-Friend's wife he's a Serial Cheater