My boyfriend discussed my cleaning technique with his mom and is going to use another method?

This annoyed me a little. His windows are dirty and I was explaining how he could clean them. He told me he discussed it with his mom and she has a different method. I’m pretty sure he’s going to use her method to clean them.

Should I just ignore this or is it a red flag?

My boyfriend discussed my cleaning technique with his mom and is going to use another method?
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