Having read that, IMO, you are being dumped in a very mean way. Usually there is one person driving this kind of behavior–and the others go along.
Do you see any of these people individually? You might (if you still want to associate with these moronically acting people) try just going out with one or two of them at a time.
If they don’t return your phone calls/attempts to set up said outing, I would give up on them. Why be a patsy?
I have to agree with the idea that you are being dumped in a very mean way.
This is the way that I was dissed in exactly the same way when I was your age. I kept trying to figure out what to do to get back into their good graces. I found out, with the wisdom that only comes from age and experience, that I would have done better to slam a car door on my hand than to try and be friends with these human bags of feces.
Four times in two weeks?
These friends you don’t need.
Don’t try and be friends with just one/two of them at a time. If they can be turned against you this easily, it may end up like one of those Cold Case files, with you as the headliner.
hh