This feels like one of the hardest decisions of your life - can I stay with my boyfriend or girlfriend while being abroad as an Au Pair? Do long distance relationships make any sense?
You will only know once you try. This is obviously easier said than done, but in this case very true. So, let me give you some inside tips and advice on how to make it all possible, because it is for sure!

Host Family

To start off, it is very important to know if your future Host Family allows any partners at their house. During your time abroad your partner might want to visit you, so it is important to know in advance if they permit it. You have to respect your Host Family’s house rules and culture, so check in advance! But don’t worry, there are always other possibilities (hotel, hostel, apartment, etc.) you have if they are not very keen on having someone over at their house.

You will get through this together

Making a long distance relationship work depends on both you and your partner. You’re in this together and never alone with your feelings. Both of you have to be willing to be separated from each other for a certain amount of time. It is just a certain amount of time though and not forever, try to keep this in mind.

Being abroad

While you’re abroad, it is important to trust each other. Of course everyone can be jealous sometimes and it’s natural. But remember you experience new things just like your partner at home, so be excited for each other. Try to call each other regularly, there are many different options like Skype, Facetime, etc. Don’t be disappointed if it won’t be on a daily basis, because life goes on for your partner as well as for you. You could also send each other letters, which is a great form of communication if you like it more personal and romantic. Surprise your loved one with little gifts or maybe a spontaneous visit.  
I think, from what I’ve learned in my long distance relationship, the most important thing is to talk to your partner if you have any doubts about your situation. If you don’t say what’s on your mind, it could cause misunderstandings. You can’t read each other’s mind. Don’t bottle up things, speak up to let your loved one know how you feel.

Finally, you can definitely stay with your boyfriend or girlfriend while being abroad if both of you are willing to have a long distance relationship. It is essential to still enjoy your time in another country and explore as much as you can so you have loads of stories to tell your partner. Your new friends will also help you to get through this and in the end it will be easier than you thought it would be!