There is a difference between ''being nice'' and ''obsessing'' over someone. Obsession is scary and unhealthy.

These people might not like you back or not want your attention. They are 'uncomfortable' because they want you to leave them alone. You not respecting their boundaries is not 'flattering', it is scary and disrespectful.

The message is clear: you have lost jobs and the current one is at stake. So, stop doing what is costing you jobs and relationships. Seek help.