Main Entry: ob·nox·ious
Pronunciation: \äb-ˈnäk-shəs, əb-\
Function: adjective
Etymology: Latin obnoxius, from ob in the way of, exposed to + noxa harm — more at noxious
Date: 1597
1 archaic : exposed to something unpleasant or harmful —used with to
2 archaic : deserving of censure
3 : odiously or disgustingly objectionable : highly offensive
— ob·nox·ious·ly adverb
— ob·nox·ious·ness noun

Whenever someone is talking about a specific quality or trait, I always like to look at the traditional definition of the term and compare it to the way in which it is being applied socially. If we do that in this instance, we see that you are being described as highly offensive, deserving of censure, unpleasant and/or harmful.

I'm not sure I agree with all of those in application but I might go along with, say, highly offensive and maybe unpleasant.

Please know that none of us here on this forum (well there are some but they do not give professional advice) are mental health professionals so everything we say here is our own personal opinions and usually come from experience.

I can tell you from my own experience and from knowing my husband, who at times I would describe as obnoxious, that you simply may be experiencing feelings of loneliness that you are not aware of being as strong as they actually are. My husband loves to talk and share information and stories with people but he is not a "social" person. I know that doesn't make sense but what I mean is, he loves people but doesn't necessarily have the social means to meet them. When he does meet people, he talks so much about himself in an effort for them to know him that he bores them to death. And, he wants to sit and talk, not play cards or pool or some other distraction but just talk. To other people, that is boring. I have suggested to him that he should learn the art of "engaging" people by asking about them and finding out about their lives. This is the secret to forming social relationships. It is very difficult when one is starved for attention or affection to focus on the other person and not on our own hunger for human companionship.

What I would suggest to you is this: take a look at your own neediness; how much true caring you are currently getting from anyone in your life (including parents); what is it that is missing in your life that you are expecting others to fill up and are desperate to have that happen, even to the point of being rude and annoying to find it; is there something from your past that you haven't thought about in years or perhaps have buried that you are trying to make up for or prove to yourself is not true?

There are a zillion self-help books out there on Barnes & Noble's shelves that will help you with these types of subjects. The problem is, you gotta know where to start. I hope some of this might help a little.

Best of luck.