dṛṣṭvā tasyāṁ manaś cakre
viṣajjantyāṁ bhavaḥ kila
Thus Lord Śiva saw the woman, every part of whose body was beautifully formed, and the beautiful woman also looked at him. Therefore, thinking that She was attracted to him, Lord Śiva became very much attracted to Her.
Lord Śiva was observing every part of the woman’s body, and She was also glancing at him with restless eyes. Thus Śiva thought that She was also attracted to him, and now he wanted to touch Her.