Why Goddess Sita being an incarnation of Goddess Lakshmi suffered

Goddess Sita though being Goddess lived life of a normal woman & acted like a normal woman. Just like other women she got emotional & wasn’t able to think analytically or use logic at times. Some mistakes she did were

1. She once told Lord Ram that “O Rama! You will go to Ayodhya & will marry several ladies since you are the king. But I will die here in your memory” Thus she committed something wrong by devaluing Lord Ram’s love for her & also doubted Lord Ram’s faith as Lord Ram had sworn to never  take any other woman as His wife. Lord Ram was always most faithful to Goddess Sita. Yet Goddess Sita raised doubts on Lord Ram’s love.

2. In an incident demon Mareecha cried for help imitating Rama’s voice. Goddess Sita thought that Lord Ram was in danger and asked Lakshaman to go & help. Lakshman was aware that it was a trick of Mareecha & refused to go. He insisted on staying by Goddess Sita, as he ordered by Rama to protect Goddess Sita.

Goddess Sita wasn’t able to think analytically & got emotional & her emotions overpowered her analytical mind & thus she scolded Lakshman as a characterless person, who was attracted to her. Thus she abused Lakshman who was a very pure person & considered his brother Lord Ram as GOD.

Thus Goddess Sita had to suffer being in captive of Ravana & this washed her wrong sayings & she was able to reach Vaikuntha without having to go to hell to clean her sins. Goddess Sita was incarnation of Maha Lakshmi & so it wouldn’t have looked proper had she gone to hell for punishment that she deserved for her statements.