Caitanya-caritāmṛta 14.163
aher iva gatiḥ premṇaḥ svabhāva-kuṭilā bhavet ato hetor ahetoś ca yūnor māna udañcati
[aher iva gatih premnah svabhaava-kutilaa bhavet ato hetor ahetosh cha yoonor maana udanchati]
Blended reading (Sanskrit + English inline)
aher iva gatiḥ premṇaḥ svabhāva-kuṭilā bhavet ato hetor ahetoś ca yūnor māna udañcati
“ ‘The progress of loving affairs between a young boy and a young girl is by nature crooked, like the movement of a snake. Because of this, two types of anger arise between a young boy and girl — anger with a cause and anger without a cause.’ ”
Purport
This is a quotation from Śrīla Rūpa Gosvāmī’s Ujjvala-nīlamaṇi (Śṛṅgāra-bheda-prakaraṇa 102).
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io