Devibhagavatapurana 3.28.43

3.28.43

nāgamiṣyati cedrāmo jīvitaṃ santyajāmyaham |
vinā tena na jīvāmi vidhurā duḥkhitā bhṛśam ||

In case S’rî Râma does not return, I will certainly commit suicide; without him I would be very much grieved and afflicted with sorrows; and I would not be able to hold on my life.