Excuses can ruin true communication if it becomes a habit because it can cause the person on the receiving end to see you as not persistent, not a promise keeper, not a person who follows through with what they say, etc.
Boasting can ruin true communication if it becomes a habit because it can cause others to dislike you. If you brag and boast all the time about things or people you have/seen and others haven't, it can turn people sour. For example, if I kept bothering you about how my computer was better and newer than yours, you wouldn't like it would you?
Always apologizing can ruin true communication if it becomes a bit because it can be so repetitive, people may become suspicious. They might not know when you're actually sincere about your apology, or whether you're just saying sorry again out of habit.
The theme of grief comes up several times during the use of sustained metaphor
No, the sentence given:
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"<span>i came home late; therefore, i didnt see aunt matildia" — is NOT punctuated correctly.
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The word: "didnt" should be replaced with: "didn't" (note the added "apostrophe")—or rewritten as two word: "did not".
Furthermore, there should be a "period" at the end of the sentence.
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As far as other grammar errors are concerned, the second instance of the use of the personal pronoun, "I"—is incorrectly written in the lower case: "i"—and should be replaced with the capital letter, "I". Furthermore, "</span>aunt matildia" should be rewritten with a capital letter "A" replacing the word: "aunt" [the word: "aunt" should be changed to "Aunt"], and the name: "matildia" should be rewritten with a capital "M" replacing the name: "matildia" [the name "matildia" should be replaced with "Matildia"]. Also, if "Aunt Matildia" is, in fact, really spelled that way, than the spelling of the name should be retained. On the other hand, if the aunt's name is actually spelled: "Mathilda"—or some variant, then the proper spelling should be used—and the first letter should be capitalized.
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--Edit--- your question should read as follows: "Is this sentence punctuated correctly?"
The only preposition in this sentence is the word of.
