Are these correct?

Is this an example of a metaphor: Ms. Wyman's sigh is like a blanket she pulls over her on a cold morning.

Is this an example of an understatement: All of a sudden Addie gets all sympethic like shes ten years older than me and engaged or something and I'm her pimply ittle brother. Its hard to love somebody when they don't love you back she says her voice getting all gooey like the marshmallows she doesn't eat because they're made with gelatin and she that kind of vegetatrian.

1st one: See the word "like" in there? That means it's a simile.

http://www.answers.com/metaphor
http://www.answers.com/simile

2nd one: I don't see any understatement in there. I do see a simile and lots of imagery and sensory detail.

Yes, both of these sentences contain examples of figurative language including a metaphor and an understatement.

In the first sentence, "Ms. Wyman's sigh is like a blanket she pulls over her on a cold morning," we can identify it as a metaphor. A metaphor directly compares two things without using "like" or "as." In this case, the sigh is being compared to a blanket, implying that it brings comfort and warmth just like a blanket does on a cold morning.

In the second sentence, "All of a sudden Addie gets all sympathetic like she's ten years older than me and engaged or something and I'm her pimply little brother. It's hard to love somebody when they don't love you back," we can identify it as an understatement. An understatement is a figure of speech where something is presented as less significant, important, or intense than it actually is. In this case, the speaker is downplaying the level of sympathy shown by Addie, using the comparison of being an older sister to their younger, less experienced brother. The following statement, "It's hard to love somebody when they don't love you back," is also a general understatement, as it minimizes the emotional impact of unrequited love.