Usually it is a negative comment. People who are not easily approachable are not good lover material.
- You might have complex behaviour.
- You might be too sensitive.
- You might take long to respond to messages or emails.
- You might have more than required over blown self esteem.
- You might fail to approach anyone first.
Anyhow remember people who love you what you are are your true well wishers. I recommend transforming yourself for better in love but not changing your core personality for any one.