Why do woman give up on potential mate if he is kinda shy?

So I’ve had many of them obviously I’m still a virgin obviously can’t even be sure they were ever interested in the first place or just in my head. Guys have good reason enough not to approach it’s not even a conversation to be had who wants to be embarrassed for nothing. But usually just the normal eye contact I think about it more eye contact everyday school or whatever place I see them. Until eventually i see them walki Talking with another guy so i know its over then i just start to ignore her as I’m supposed to do. Then i get them walking with the guy and looking at me like i missed out on something could’ve been us. But the real question is why not start it yourself instead of doing something you don’t want to do not that I’m so amazing that you regret it or care. But sometimes I try to act on it early doesn’t go well or I think she isn’t interested I move on fast don’t have time for the bs. I understand the man does the approach but why just say to hell with it and give up especially since you obviously see me not shying away from the attention and feeling is probably mutual. Again I’m not amazing I get that and I know they pick another guy because they want to not because they are stuck with someone they don’t like.

Why do woman give up on potential mate if he is kinda shy?
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