Sisters are often very critical of each other and everything in each other's lives -- this can be difficult for the boyfriends. We want what's best for our sisters and we will degrade anything about the boyfriend if we don't think he's the best thing for her. My sister has had a fair share of good and bad boyfriends. I have tried my hardest to come up with reasons she needed to break up with a boy and reasons she needed to stay with him forever. I have accepted that my sister will marry who she wants, and while she may listen to my opinion, she will obviously listen to herself more. That being said, here's a letter to the boy my sister loves, but I have indifferent feelings towards.
Hey Bud,
So I know things can be kind of awkward between us at times. You know that she’s my sister and that she’s your girlfriend. We are kind of in competition for her attention, but, let me get one thing straight here ... she’s mine. She was mine before you came into the picture and she’ll be mine if you leave (which I hope you don’t because she loves you).
Let me explain this to you in further detail. I know everything about her, beyond the stuff you say during an icebreaker. I know which pair of shoes are her favorite; I know not only her favorite place to eat, but what she likes to order there; I know the brand of socks she buys; I know which laundry detergent smell is her favorite; I know so much about her, it’s a little bit creepy. I hope one day you can know all these things too, but I know that, like other boys, it’s possible that you’ll be gone in a few months. So as her best friend, promise me this:
Promise me that when she gets a headache you’ll get her a cold wash cloth and Advil because that’s all that works.
Promise me that when she asks for coffee you’ll get it for her and put in enough sugar that it is basically sugar water with a slight coffee taste.
Promise me that when she starts to get emotional over a problem you will talk to her instead of yell at her. She doesn't cry easily, so when she does, it's serious.
Promise me that when you go on road trips, you won’t even consider stopping at McDonalds. (This is a helpful hint to you.)
Promise me you won’t call us immature when we start doing our impressions of our favorite TV shows from elementary school.
Promise me that you won’t hog her on birthdays, holidays or any day of the year for that matter.
Promise me that when she is having a bad day and takes it out on you, you’ll know to start playing "Pitch Perfect" or "Bridesmaids" because those are her favorite movies and will get her laughing again.
Promise me you’ll like her Instagram posts, even if you don’t get why it matters to her.
Promise me you won’t call at 8 p.m. to 10 p.m. on Mondays because that is when "The Bachelor" is on, and that is serious business between sisters.
Promise me you won’t break her heart.
Promise me you’ll treat her like the princess she is.
She has been my best friend for 19 years. We have been through the good times and the bad times; we have experienced deaths, graduations, proms, moving, homecomings, championships and so much more. She will always be my best friend, and when I’m standing at the altar with her in a few years, I hope that she’s looking at you because even though I don’t get it, she loves you, and she deserves for you to love her back.
She is my sister, and even when she acts like I’m a pain in her butt, promise me that you’ll have my back. She is your girlfriend, and when she calls me complaining about how you are a pain in her butt, I promise I will have your back (most of the time).
We are in this crazy relationship together, Buddy, whether you like it or not. All I can say is you got yourself a good one; she deserves the best, so promise me that is what you’ll try to be.
Love,
Her Best Friend And Her Sister





















