あなたanata、ご自分じぶんgo-jibunのことkotoばかりbakariですのねdesu no ne

Pronoun
"You." In Japanese, directly addressing someone as あなた creates emotional distance. Sakiko uses it to sound cold and detached.

Honorific Prefix 🔑
自分 (jibun) = oneself. Adding ご is an honorific prefix (beautifying language). ご + Japanese-origin noun is a common keigo pattern, e.g. ご家族 (family), ご住所 (address). Here, the politeness is ironic — using elegant language to call someone selfish.

Nominalizer
の = possessive particle, こと = matter/thing. 自分のこと = one's own matters. 〜のことを考える is a set phrase meaning "to think about someone/something."

Adverbial Particle 🔑
"Only / nothing but." Indicates excessive focus on one thing. In casual speech it contracts to ばっかり → ばっか, but Sakiko uses the formal ばかり — fitting her refined speech style. Compare with Rana's rough ばっか!

Feminine Keigo Ending
です (polite copula) + の (explanatory/emotive particle) + ね (confirmation). This is a very feminine, elegant sentence ending that conveys "so that's how it is, isn't it." It's Sakiko's signature ojou-sama (refined lady) speech style.