What does it mean when a girl is scared to accidentally compliment you?

Some examples:

1. I sent a cute emoji. Her reply was "cute!" Then later she was like "the emoji."

2. I changed my hair style months ago. Friend was looking through old pictures and said "wow I don't remember you having this hair. It did not suit you." Other guy friend asked, "does it look better now?" She was hesitant to say yes. She seemed really scared to give me the wrong idea.

I may be overthinking but i'm feeling really insecure with low self esteem because of things like this. It's making me feel like the last guy on Earth anyone would want.
What does it mean when a girl is scared to accidentally compliment you?
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