I’m his backup?

This guy I know recently messaged me again to say he wanted to see me again. We talked but he never set up any proper plans. He had a picture of him and a girl as his profile pic.

He messaged me again later to ask how I’m doing and saying how he wants to make it up to me and he’ll do anything I say earlier on this week. We didn’t talk in between.

Now he’s changed his profile picture to a picture of that girl. Who even does that on messaging apps? Lol

I’m guessing I’m just a back up in case things don’t work out with that girl?
Updates
+1 y
I blocked him and he has also blocked me now.
I’m his backup?
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