Being the persuer?

I’m not sure if anyone is like this but, I tend to be the one that “hits on,” guys rather than be the one waiting or hoping for them to do it. I met my ex of when I offered to buy him a drink at a bar. And now that I’m single for the first time in a long time, I find that guys get uncomfortable when it’s me initiating flirtation. At first I thought that I was coming in too strong, but my friends reassure me that completely not the case. I don’t know if anyone experiences the same thing.