Ok, I think it's fair to say, objectively you are well within the realms of normal-good looking and with some work will be even better.
Now my latest hobby horse is people mindreading- and this cuts both ways as well.
You get the guy on here saying, 'Yeah, and I've noticed girls checking me out, all this bulkings really working'
How do they know? How do they know she wasn't thinking, 'Look at that tosser, what a wanker.'
Well he doesn't, not unless he asks her and even then they can lie to you you know!
The point I'm making is it's whatever your thoughts are, these are what you project onto them and you make the assumption she thinks you look scary.
Now you may be right, or the guy who's all puffed up might be, but tell me this, which is most likely to get you to approach her and find out for sure?