Dream of being rejected means that you are not feeling confident with certain choices you made. It represents deep sadness, pain or grief.
If you are getting rejected by someone, you may not be the one for them. So if this turns into more than just a dream it could signify that you’ve been trying to connect on deeper levels and haven’t hit it off with the right person yet.
To reject someone in your dreams could actually mean they have rejected you mentally which is kind of worrying and cause some tension between the your subconscious mind and them.
Try not to be too hard on yourself. Work on bettering yourself, and you will find out that the world does not revolve around them.