"My Pretty Rose Tree" is a poem written by the English poet William Blake.
He then returns to his tree and tends to her every need both day and night, but she only turns away from him in jealousy and shows him the thorns of her own.
[3] Johnson describes "My Pretty Rose Tree" as "...an ironic reconsideration of the emblem convention.
Blake's speaker, having rejected the lovely flower offered him, tries to tend his pretty rose tree with all the single-minded ardor of a Petrarchan lover; but his devotion is a sickness nourished by his perverse or ironic 'delight' in the thorns of jealousy.
"[3] Antal also goes further to mention the frequent use of the word "my" in the poem, especially when in reference to rose tree.
If the rose tree, or rather the woman, fears that her husband is unfaithful to her, she wouldn't want to trap her children within that environment.