Hi Andjelina97, just wanted to say, you have one more planet in Cap than I do and that makes things pretty tough (in fact the similarity is having me reply since I can see how stuff would work out with your placements - and, you even have the same degree Jupiter as mine nearly
)
Now when you have a lot of capricorn energy you are not going to be very outgoing or socially assertive so your idea of how others approach you is going to be something like, if they are interested they'll make it clear they are - except other people tend to think similarly so if you are not seeming to make the effort they assume you are not interested in talking to them either (generally) and so on. The reason things may have changed so abruptly just now is that for a while Pluto has been in your 11th house (of friends) and recently this year Saturn joined him too - where Saturn generally reduces your associations to only the really important ones and if these friends weren't meant to stay in your life Saturn would basically have them stop hanging out with you. However it is going to get you thinking seriously/deeply about making friends you can rely or count on.
You also have Jupiter in the 11th house though which means you do get lucky with finding people who are good for you as friends and Jupiter should make it fairly easy for you to do so as long as you give it a try.
With Mercury as your descendant ruler (of relationships and 7th house affairs) part of a t-square with Mars and Saturn it would appear you may have a tendency to more easily attract people who are rather mean or unsupportive (or have in the past) who may have given you some negative idea about relationships. Or there is some conflict of needs happening that is making it hard to get into them, however on the plus side you still have Mercury in aspect to Saturn so you could end up with something solid and long-term with some looking - being a Cap guessing you'd be interested in something like that.
Good luck, there is nothing wrong with your Cap planets, they just work a little differently than some of the other signs when it comes to socializing.