What is the word whom used for in a sentence?

He saw the faces of those whom he loved at his birthday celebration.

She saw a lady whom she presumed worked at the store, and she asked her a question.

Here dwells an old woman with whom I would like to converse.

'Whom' is used in place of who, and i like to use it as shown in the last one, unnecessarily and to add more words to the text, and to make it sound more put together.

Your welcome,

Theadosia, your friend from hell.

her eyes water as she let her go

her mothers hand goes limp

face white and pale

lips blue and stale

she is gone

sadness fills her body

she collapses to her knees

as her mothers disease leaves the girl alone