Any she chose.
Artemis is Ageless and Immortal, thus her "adult life" is nay imposable to determine for who can measure the "life" of the immortal who does not die?
Iphigeneia, which was the girl's name, was either saved by the goddess and made into the immortal Hecate - or Orsilokhia, or made her a her priestess in Tauroi; either a stag or a bull replaced Iphigeneia as the sacrifice to Artemis.
As Queen Persephone of the Underworld, and goddess of the spring - a daughter of Zeus and Demeter, and wife of Hades - there is not much anyone mortal or immortal would not grant her. A goddesses powers are not limited to human imagination.
If you believe that Aphrodite is a daughter of Zeus, her immortal sorority would include Athena and Artemis. If you follow the idea that Aphrodite is actually a daughter of Kronos, then Hera, Demeter and Hestia are her sisters.
The Trojan War is most often remarked, but it pays to remember that this goddess saw the rise and fall of the Greeks and lives on (for she never died, being immortal) still.
Immortal Ageless Goddess
Ageless Immortal Goddess
Immortal Ageless Goddess
Artemis was a Greek goddess, so she was immortal.
Artemis as a baby was a immortal goddess. Artemis was born of the immortal Olympian god Zeus and the immortal Titan goddess Leto.
Artemis is a immortal Greek goddess: they are ageless. Usually, Artemis was portrayed as a young woman.
Since both Artemis' parents were divine gods, Artemis was born as an immortal goddess.
Artemis is a Greek immortal goddess and did not die. Diana is a Roman immortal goddess and did not die.
Artemis's powers are to heal.
You can not kill Artemis, she is a ancient immortal Greek goddess.
Artemis is a Greek goddess, a who immortal never dies.
Artemis was a immortal Greek goddess, she could not die.