If a guy has an emotional reaction to you (like angry, offended etc) does it mean he’s emotionally invested?

Of course I’m not talking about every single situation, but if he finds out you used a friends meme account to look at his socials instead of adding him directly, and then he found out in real time and looked angry and offended and told his brother about it that somewhat knows you, does it mean he was emotionally invested in you? As my brothers have a lot of girls that are attracted to them and stalk their social media all the time and literally come and tell me. He doesn’t care about them at all.

If a guy has an emotional reaction to you (like angry, offended etc) does it mean he’s emotionally invested?
Post Opinion