Crafting Heartfelt Appreciation in Relationships

Help me express meaningful appreciation to [relationship person - partner/friend/family member/colleague]. I want to go beyond generic 'thank you' to communicate specific, heartfelt appreciation. First, ask me 3-5 questions about this person and what I value about them. Based on my answers, help me craft 3 different expressions of appreciation that: 1) Name specific actions or qualities I appreciate, 2) Explain the positive impact they have on me, 3) Use language that will resonate with their likely appreciation style, and 4) Vary in length/formality for different contexts (casual mention, text message, formal thank you).