Never measure how you see yourself by what others are doing, or treating you. Always set your own value, and do for yourself.
get over it my friend, and stop thinking this is a pity party. Its not. Stuff happens in life, and you have to keep living. If you can't you will sit there looking stupid and wondering WHY ME.
This happens to us all and we keep moving forward to thrive, and survive, and do our own thing.
Doesn't matter what others do, or try to do. All that matters is what you do, so find something good to do, that makes you happy.