What's the difference between assertive and aggressive communication?

Assertive is clear, direct, and respectful. "I need more quality time with you." Aggressive is demanding or disrespectful. "You never spend time with me!" Assertive honors both people; aggressive prioritizes winning over understanding.

Why is passive communication damaging to relationships?

Passive people (people-pleasers) suppress their needs, then resent their partner for not reading their minds. Over time, resentment festers into contempt. The partner doesn't even know there's a problem until it's a dealbreaker. Speak up early and kindly.

How do I become more assertive?

Start small. Practice saying no to tiny requests. Express a preference ("I'd prefer Thai food") instead of deferring. Notice when you're suppressing needs. Then practice the words: "I need," "I feel," "I want." Most people respond positively to clarity.