Is this normal? I have the urge to lock my friend up and keep her to myself whenever she hangs out with her other friends. I also tend to overthink when she doesn’t answer my messages. I get jealous when she hangs out with her friends too.
What you’re feeling is more common than you might think, especially in close friendships. You’re not a bad person for feeling this way.
That said, it’s worth reflecting on the thoughts you’re having, as those feelings when intense, can sometimes put a lot of pressure on a friendship without you meaning to. The other person may not even be aware of it, but it can quietly strain things over time.
These kinds of feelings may come from a place of anxiety about losing people or from past experiences of feeling left out.
Something you may want to reflect or explore more, is that if this friendship is the only one you have that means a lot to you?