Just a thought (please disregard if it doesn't help): could it be that people get annoyed with you and want to interact with you less and less through time because you open up more and more about your problems and vent an excessive amount? Venting is great to blow off steam, do not get me wrong. I do it more often than I'd like to my boyfriend, who is the only one I am comfortable venting to (so it sometimes is an excessive amount, too much to do any of us good). People who do not know you deeply (like your associates possibly) may back off as soon as you open up with an overwhelming amount of problems. I am sorry if this is what has happened to you. I wish people were more accepting and understanding and supportive out there in the world, but this is not the case plenty of times. Again, please disregard if this is not what has been happening to you.