My sister is staying with me, and she’s driving me nuts. When can I kick her out?

Dear Grace,

My sister just broke up with her boyfriend and is now staying with me. She’s my sister, and I love her, but she’s rude, bossy, and self-absorbed. She uses the last of my milk without replacing it, leaves crumbs on the counter, and borrows my clothes without asking. But what bothers me the most is that I feel like she is always using me.

How do I tell her she can’t stay here forever? How do I deal with her while she’s here?

– Stressed Out Sister In the Sticks

Dear Stressed Out In the Sticks,

First, let me say this: you’re being a wonderful sister. It brings me so much hope to see women supporting women, like you are with her. Opening your home to someone going through a breakup is no small thing—it’s messy, emotionally intense, and as you’re discovering, can turn your whole life upside down. It’s completely normal to feel stretched thin.

Here’s something people don’t talk about enough: the price of strong relationships is inconvenience. Real love means showing up when it’s hard. But that doesn’t mean you have to absorb rudeness or disrespect while you’re helping. Your sister is going through something difficult, and breakups can make even considerate people act self-absorbed for a while. She is struggling, and she is not the best version of herself right now. That doesn’t mean you can’t lovingly set boundaries.

Start by setting some house rules together.

Let’s address the milk, the crumbs, and the borrowed clothes first. Sit down with your sister when you’re both calm and say: “You are important to me and I want our relationship to be strong, so let’s make some house rules now so we don’t end up in a fight later.” A conversation about boundaries now will save you both a lot of heartache later.

Be specific, like: get your own groceries, replace what you use, clean up after yourself in shared spaces, and ask before borrowing anything. Then make it a two-way conversation by asking: “Is there anything you want to add? Are there any boundaries you’d like me to respect?” Consider creating a simple shared system—maybe a grocery list on the fridge or fifteen minutes of tidying together every night before bed.

Agree on a move-out date soon.

Don’t wait to address how long she can stay—it only gets harder the longer you put it off. Your sister needs to know this is temporary, and honestly, she probably needs the structure of a plan to help her move forward. Say something like: “I know you’re figuring things out, and I want to help you. Let’s make a plan for how you can find your own place.”

Work together to figure out what she needs—maybe saving money, finding a roommate, or just time to heal. Set a target move-out date that’s reasonable but firm, and check in regularly. This isn’t about kicking her out; it’s about protecting your relationship and helping her regain her independence.

Spend some time journaling or reflecting on your relationship.

You mentioned feeling like she’s “always using” you—and that “always” tells me this pattern didn’t start with the breakup. That’s real, and it matters. But right now, while she’s in crisis mode, it might not be the best time to work through that together. Instead, spend some time reflecting on when this pattern started and how it makes you feel. You could even reach out to a counselor or therapist to help you think through this pattern and how to talk to her about it. 

Once she’s more stable and out of your home, then it’s time to have a thoughtful conversation about how you want your relationship to work going forward. It might not be easy, but you clearly love each other. A closer, more even relationship might be just a few hard talks away. 

Supporting your sister through this breakup shows your generosity, patience, and loyalty. Setting boundaries while you do it doesn’t make that any less true—it makes this sustainable. You deserve to feel respected in your own home, even while you’re being extraordinarily kind.

With care,

Grace