There was no way he could get Harry to "pass the tests’ so to speak, if he didn’t even know his own memories. How can Harry and Tom fall in love with each other if Tom didn’t know who he was at present? He had believed he could reason with himself and be able to get some of his memory gaps filled in but that proved to be fruitless. He groaned out in frustration to no one but himself, at this rate they were both doomed to fail.