Dearest Little Sister,
I've been thinking of you so much, so often. I know you wouldn't know it from the amount of phone calls and text you get from me, and for that I am sorry.
You live so close now and we see so little of each other. I take full responsibility for not being around more. I often plan to call or ask you out, but life gets in the way. It's not an excuse, you're always so gracious about it, but we could be texting. We could be getting together occasionally. We could be staying connected.
I love you. I want to be there for you. I want us to stay close. I want to continue making memories with you. I want to keep laughing with you.
If someone were to ask me what kind of girl my sister is, I would say, She's the kind of girl that can kick your ass, but doesn't. She's the kind of girl that when she loves you, she is loyal to a fault. She will listen and love you for as long as you need. She doesn't show her cracks and she's good at making you feel like she can handle anything. I think she can, but I still wish she would tell me when she needs me.
You're important to me. I want you to know that. I want us to commit to spending some time together. I promise to start texting you more. That's a line of communication that is always open, no matter how busy and harried I feel/I am. I hope from that small step we can take more.
I love you.
Your neglectful older sister,