Mr Michals, 26, told the Old Bailey that fellow Goldsmiths student Zhe Wang, 31, was "stressed" because she incorrectly believed she had contracted a sexually transmitted disease after they had sex in February 2024. He visited her flat in Lewisham, south-east London, the following month to bring some "normalcy" to the "bizarre situation", however after he arrived, Ms Wang came at him with a knife, jurors were told.