If someone keeps working to get you away from your friends and alone with them, trust the uneasy feeling.

Isolation is a pattern worth knowing by name. Somebody who keeps arranging for you to be away from your friends, who criticises the people looking out for you, or who wants privacy more than they want your company, is removing the people who would notice something wrong. The uneasy feeling is doing its job, and it usually arrives before you can explain it.

You do not need proof to act on it. Keep somebody informed about where you are, say no to the plan that peels you away from everybody, and tell one adult or friend you trust about the pattern. If you are wrong, you lose nothing.