The sentence has a grammatical error. "Beared" is incorrect; the correct form is "bore." Therefore, the grammatically correct sentence would be:
"I never bore any grudge against you."
This means that the speaker has never held any resentment or ill feelings toward the person they are addressing.
Here are a few rephrased versions:
1. "I have never held any resentment toward you."
2. "I have never had any hard feelings against you."
3. "I never