Dear Abby: I’m a 15-year-old girl and a sophomore in high school. Last year I went to school across the country. While I was there, I became best friends with this girl, “Amelia.” We did everything together, and Amelia even flew back here to visit my family when school ended and I had to go home.

It has now been a few months since I’ve seen her, and so much has changed. She doesn’t make time to text or call me hardly ever, and when she does, it’s always a quick conversation. Because of the time difference and our schedules, I get that it’s difficult, but shouldn’t she make some time for her best friend?

Amelia and I were as close as sisters, and I can’t stand the thought of losing her. I have already called her out a few times, and we are good for a few days, but then she goes right back to pretending like I don’t exist. I’d rather not call her out again. Any thoughts?

— Faraway Friend in Maryland

Dear Friend: Rather than “call her out,” it’s time to lighten up. Stop trying to make Amelia feel guilty for not giving you the attention she was able to when you were geographically closer. If there’s one thing I have learned about friendships, it’s that they tend to ebb and flow.

Because you now live apart, concentrate on building other relationships with people close by. This doesn’t mean you can’t remain friendly with Amelia; it simply means you are expecting more from her than she’s able to give you.