re: Why didn't people get mad at Jenny?

1- It’s definitely Forrest’s kid. Their mannerisms are too alike and the timeline matches between when they hooked up and when he was born.

2- Jenny knows she’s dying, so, like any good mother, she sets up her kid with a damn good life while guaranteeing that someone will look out for Forrest as he ages.

3- She gives Forrest what he always wanted by marrying him.

Her dad messed her up pretty good. She wanted to escape that life and Forrest reminds her of the life she is so desperate to escape. She doesn’t care about him because she doesn’t care about herself. She does shitty things to herself and others and almost jumps off a building because of her inability to love herself and others. It’s only until she has little Forrest that she learns how to care about someone else. That’s her arc and growth. She did some really bad/mean/selfish things, but does right by the two people she’s learned to love the most in the end.

(Also, Forrest isn’t naive when it comes to her. He tells her off at one point (“I know what love is…”) which causes her to leave.)