If you get something from someone, you must reciprocate. Otherwise you have to come again and pay. So whatever you get, reciprocate. Don’t take burden.
Krishna is within your heart. If you kindly continue to hear about Him, as you are doing, then Krishna will be very much pleased. “Oh, this person is now interested in me” because nobody is interested in Krishna, so Krishna is also silent to them. However, as soon as you become interested, Krishna becomes very active. “Oh, he is trying to do something. I shall help him.”