HN user
Although stalking can be done by any gender, it does seem that obsessive behaviour and social maladjustment are more masculine traits in general.
That's not to detract from your suffering - I am sorry to hear of your terrible experience at the hands of this creepy, awful woman. I hope you get this resolved somehow.
Indeed, I guess this is what happens when an already somewhat weird guy spends all his free time playing computer games, rather than getting out there and learning how not to be so socially maladjusted.
Sounds like you're trying to excuse his awful behaviour.
The guy was clearly a creep who doesn't deserve any sort of relationship with her, or indeed anyone else who he is being weird, unpleasant and threatening towards.
You should keep reading; her stalker becomes extremely creepy and intrusive.
Her messaging him occasionally prior to this does not excuse his predatory, stalking behaviour - as you seem to be implying.