a DJ has a certain celebrity status, and you'd been a fan of his persona for
many years... that friend of his might be representing the "darker", or less
obvious aspects of the same person, and you'd not got on well with that guy.
the feeling seems to have originated from you.
in part 2, it seems that you've adopted the 'alternate identity' of your friend
Dean (you were acting as his "darker side"). his friends got on with him just
fine, but found you odd. it's relevant to point out that "weird/strange" isn't
necessarily 'repellent'... they might have found you 'intriguing' if you'd
allowed your freak flag to fly freely (rather than become defensive).
the "big fat woman from a dating site" is representing the possibility for
copious love to come your way, if you were inclined to accept it.
on the whole, the dreams seem to speak to your coming to terms with a
less than idealized version of yourself which desires acceptance and love.