Fickle Frenemy

Dangerously dangerous,
dutifully devious,
flagrantly fake,
while simultaneously sweet,
confusingly civil,
cordially considerate.
Painfully pricked once,
earnestly embarrassed twice,
three times meticulously met
with warm welcomes.
A gate guards my heart.
Your key can’t unlock.
Unrestricted no more.
Finally, free.
But, baffled by it all.

This is an example of alliteration: the repetition of usually initial consonant sounds in two or more neighboring words or syllables (e.g., purple plum, clumsy clowns).