Okay, recluse, I took a look at the pics in your album, and you look really good on some!!
People have different tastes and different perceptions, maybe that girl was just teasing you (or thought you were maybe umm trying to be sleazy? without knowing the context of the pic), or might have such severe bdd herself (and bad manners!!) - or
just bad manners!! Sometimes people have a difficult day and just lash out at other people or such...?
Nothing wrong with your nose imo...
In some other threads you wrote about being miserable with life, and around holidays or before birthdays with 'round numbers' or on weekends many people can feel 'miserable'... (at least that has been my experience, and I read about it too)
World situation makes many people 'depressed' so it's no wonder... I have hope in collective wisdom of humanity to find new solutions and 'survive'... (so far we have... and it hasn't been easy sometimes..)
I find that I see myself as more 'attractive' and actually AM more attractive (to other people) when filled with enthusiasm about something (even if it's something very silly, like baking cookies or going somewhere new...) So maybe you could try to find an activity you enjoy or feel good at? Carved any pretty spoons lately?
It might also be helpful to learn a bit about bdd, it was helpful to me...
Actually, most people don't care just about 'looks' so much, it's 'the whole package'... and even if you're eg depressed, people can value your deep thoughts or interests or general character... A lot of people with sp are really NICE and that is VERY valued in the world 'out there' too!!
Poster #2, you look really good too!! (And I'm saying that as an older auntie or sister, just to be clear, as I'm way older than you!)
Sometimes girls can be intimidated by goodlooking guys, or may even compliment someone else's looks (just to avoid attention!) - I know cause I've done it when I was younger, and a girl I know did it to attract a guy's attention (they started dating soon after she praised some football team a lot, cause the guy got jealous and started saying 'what has he got that I don't?' and FINALLY asked her out!!)
(It may not always be so, it CAN be a case though...

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You both and others here look WAY better than Brad Pitt or George Clooney - I canot see what women see in them?? Clooney can be very funny and charismatic - but goodlooking?? huh??