Bumping this, as just found this board and am reading and nodding along to so much. I almost certainly have ADHD (probably should get diagnosed, but keep procrastinating...) and have had these sorts of experiences all my life.
Like other ADHDers seem to report, people often like me to start with as I can turn on the charm for short periods of time and am warm, funny, a good laugh, etc.
But the 'weirdness' starts to creep in pretty quickly - very loud, dramatic, prone to flying off the handle, (at times) dangerously impulsive, struggle to listen to people when they are talking about something I am not interested in, zoning out, etc, finishing people's sentences off for them - impatience, can't do things like walk slowly or wait for trains/buses (dragging people on 5+ mile walks because I refused to wait 5 mins for a bus), struggled to channel hyperactivity into anything useful and would often do incredibly stupid, impulsive things like randomly chuck a ball into someone's face/throw things over fences/whack balls out of play/run off/etc in sport - generally on edge a lot. Also suddenly becoming overstimulated/overwhelmed and needing to leave places or going very quiet (often after being really hyper).
I was tolerated by some people at school, but always on the edges, and some people just outright disliked me (to the point I was physically attacked on a couple of occasions, like a pp). Have only a couple of proper friends as an adult - no one from school/uni. I have lots of acquaintances - people I will chat to, but barely any deeper friendships. I have been called the 'drinking friend', for example - and now I don't really drink, those sorts of friendships have dried up.
I can mask, but have to think about what I am doing constantly and coach myself through it (eye contact - not enough, or too much - am I talking too much - ask them a question - etc). I guess NT people don't need to do this!
I find NT friendships strange when I observe them. Often I find I don't like the people who seem to be the most popular - I have no idea what draws people to them. I find many people NT dull and/or irritating. I have some autistic traits too, but don't think I would meet criteria for diagnosis.
I used to care deeply, but it bothers me far less now. Luckily I am pretty introverted and happy by myself. My dh and dc like me!