Why do all these guys like me all of the sudden?

So. Since the beginning of this semester a boy liked me, and a boy that liked me from last year still liked me which I found normal. A week a go, is when I found out my ex boyfriend liked me (it didn't work out) but any who, my best guy friend started liking me, another of my guy friends said he liked me and asked me out? And one who said he didn't like me said he now does. I dint consider myself ugly but I'm not beautiful either. In my opinion
Why do all these guys like me all of the sudden?
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