Read my thread about the same thing in The Mature Man section called: “Why did I react this way?”.
https://www.sosuave.net/forum/threads/why-did-i-react-this-way.253629/#post-2584441
I have a theory. I think we care about how she thinks of us. Maybe you care about how she sees you. We don't want to be thought of as a loser who can't get or keep a girl. We don't want to be seen as a guy who can't get laid if our life depended on it. We don't want any woman to see us as a sexless stuffed animal.
Yet thats how I acted in my case. I was too afraid of coming off as a perv. So I went the 'nice guy' route and it totally bombed.
It's not that I have oneitis. But sometimes I'm consumed by thoughts of what she must think of me.
This chick cashiers at the store I seen her standing outside of. Is she flirting with the male customers the way she flirted with me? Is she telling other dudes who got her laid about me? About how I couldn't get the job done with getting her naked and laid?
I was fresh out of a relationship when she flirted with me. I was depressed with low self esteem. No experience dating women to get laid.
I thought going out to dates was the way to do it.
I didn't know that I was enough just the way I was. I didn't need to wine and dine her. All I had to do was
step inside her truck and she would take care of the rest. But I missed it.
I don't think we have oneitis. I think we care too much about what one chick who rejected us thinks of us.
We have to hold ourselves up as the prize. Truth be told these women sure ain't no prize. Cuz along with that wet hole there's a lot of headache.
I'd suggest to stop looking at and/or fapping to porn.
When I stopped that even for awhile what I thought of myself got better.
Alternatively, now that I know where she works, I can walk around with a chick there or even go into the store to buy something with my current plate hanging onto my arm. Not so much to get any type of 'revenge' but just to neutralize in my own mind what I think she must be thinking of me.
Let her see you with another girl.
Read my thread cited above. Hope I could help.