Hmm, I used to be very good friends with a "pacifist" man who now spends his time posting angry violence filled diatrabes on facebook, usually against feminism. It's sad really.
I know lots of gentle/normal men who don't see violence as a manly thing but don't label themselves pacifists, though.
That internet date thing is just ... gah. I see this all the time now. The casual confidence men have, that the worst thing that could happen to them (and they literally fear ie think it's likely to happen) is generally nothing and yet women are constantly in low level fear or at least awareness. I'm afraid all the time and I'm so used to it I stopped noticing it. When I'm sexually active I'm constantly low-level afraid/aware of the fact I might be pregnant and worried about that. When I was pregnant there's always that fear that something might happen to the baby. Then there's the general fear that strangers might want to harm you, or in that dating phase of a relationship, that something crazy or violent is going to come out in the man you're seeing.
I mean I don't live in fear obviously, I'm not suffering from anxiety (well I do but that's not the same as these things, it's a totally separate feeling). But I keep reading stuff - a blog where a man travels to different parts of the world just to find out stuff about that place, no plan, just turn up there and see what happens. He stays in strangers' homes, gets shown around refugee camps, etc. I'm sure women do travel like this but I can't imagine somehow a woman being so blase and "sure, whatever!" about the whole thing. In several situations that he blogs about it's clear he was only safe in a particular situation because of his maleness. And a Danny Wallace book where he travels around randomly, meets up with strangers, does a load of stuff "for a laugh" that again I can't imagine being such a laugh for a woman because you would attract so many more psychos and nutters (and not be so able to laugh it off when you did). It's a kind of easy confidence which comes from knowing "I have perfect right to be here". Of course that should be the case for women as well but I think we are constantly subconsciously aware of the fact that a small but dangerous minority of men really believe that women don't have the right to be anywhere.