我只知道心跳一刻我动心了
[wŏ zhĭ zhī dào xīn tiào yī kè wŏ dòng xīn le]
This means 'My heart beats only because I've fallen for you.' This net name reflects the speaker is smitten or infatuated at first sight. It implies they felt love or attachment when they saw the person they are referring to.