Am I overthinking or overreacting?

There is these two people that I know and they’re like parents to me. I don’t have a close relationship with either one of my actual parents. I felt really close to them about a week and a half ago and now all the sudden this week they didn’t call me like usual and I sent them a video the other day and they didn’t text back. I’m trying to tell myself they could just be busy but I’m scared they could possibly abandon me and I feel loved by them so I don’t want that to happen. Am I overreacting at all?