Which line in this poem indicates that the poetic speaker is hopelessly in love?

and pleas’d with our soft peace, stayed here his flying race.

where with most ease and warmth he might employ his art:

deceiv’d the quaking boy, who thought from so pure light

but she most fair, most cold, made him thence take his flight
to my close heart, where while some firebrands he did lay,

he burnt un’wares his wings, and cannot fly away.