So my (best) friend and I have been in constant contact for months now. Recently though, she's been ending all of her messages with "have a good summer in XXXXXX", even when I have more to say. Is she trying to cut me off and end the conversation, or does she just want me to have a really good time? I'm really confused.
Its hard to say, but it seems like she might be cutting you off. Maybe she's just busy or has other things on her mind. You could talk to her and ask about it, maybe in person so she can't cut you off.