Bit of history. Around 6 months ago I was out running, it started raining hard and as I was heading up a long road I was aware a car was travelling behind me quite slowly (opposite side of the road to me but going in the same direction). It was keeping pace with my running (which means it was going really slowly). I heard someone (male) yelling out to me, something along the lines of "I'll give you a lift you are getting wet". I waved them past without looking at them. They kept the slow pace behind me, stopped again and yelled out some more, again I didn't really look just waved them through. I felt really uncomfortable. When I got to the milk bar further along I stopped and went to go in at which time the car turned and drove away. I only got a quick look at the car - silver commodore. At the time it looked similar to my neighbour so the next time I saw him I just asked whether it had been him (as if it had been him I would have apologised for being rude and waving him away). He told me it wasn't and we left it at that.
Fast forward to today. I was getting mail out of the letterbox when he came over. We haven't seen much of him or his wife in the last six months, but didn't think much of it. He was quite angry when he came over and basically said that he'd been stewing on this for 6 months, that his first wife had been followed home and raped while their 4 year old son was there. He said I had really upset him and the gist I got was that I had offended him as he felt I was accusing him of inappropriate behaviour. I apologised and explained I had been hoping it WAS him so that it would explain the person's behaviour, and that I had thought I'd made it clear I had thought it was a stranger, but just wanted to double check. He then went into great detail about what happened to his wife, then other family members (unrelated but also distressing assault).
I now feel really, really uncomfortable - a) because I've offended him (have apologised) and b) because I was totally off guard, there was a high level of disclosure and something just doesn't sit right. I am actually really shaken by the whole thing.
Now I don't know what to do, if anything. What do you think? Am I over reacting, should I do more?