Key Points
- The function of Miis cheating is not available in this version of Tomodachi Life.
- You can, however, set Miis up with other Miis even if they are in a relationship.
- Not all Miis will have a successful second relationship, and it all depends on whether their crush likes them back.
Setting your Miis up to have a future together is sort of the end goal in Tomodachi Life: Living the Dream. While romance is a core mechanic of the game, you will find some Miis have changed their minds about their current partner. It is up to you to decide who they should be more faithful towards.
Read More: Tomodachi Life: Living the Dream Romance Guide
Is Cheating Allowed Between Miis in Tomodachi Life: Living The Dream?

The short answer is no, there are no elements of cheating between Miis in the game. I’ve tried checking for countless hours with various Miis to see if one of them is sly enough to run behind their partner’s back. During this time, I realised that if a Mii has fallen in love with another Mii while in a relationship, they can ask for your opinion on which Mii they should date.
Picking one or the other will make them leave the other Mii that isn’t preferred, but a Mii won’t go behind their partner’s back to actively seek out another relationship. With that said, there could be instances where a Mii who is single would like to spend more time with a Mii who is already in a relationship.
Then, the decision on whether they should be a homewrecker will be on your shoulders. There are several different relationship options that your Miis can follow, but none of them will lead to a Mii cheating on their partners.
How to Make Miis Change Partners
If you are thinking of changing a Miis partner while they are already in a relationship, then you should set them up with your preferred Mii. That will include putting Miis together frequently and making them participate in events. Also, if the two Miis traits and personalities align, then the chances of them leaving their current Mii will be higher.
On the other hand, if the Mii that you wish to pair up with is known to never reciprocate feelings, then the Mii in question will reject the idea of pursuing the.m. You need to find emotionally available Miis for them to be compatible with each other. Also, Miis who have pre-assigned partners will not change them, so it’s futile to set them with other Miis.
FAQs
Can I set my Mii up with the same gender?
Yes, you can set up your Mii’s dating preferences so they can choose which gender they like to date. Once assigned, they will not gravitate to the opposing gender.
How many crushes can my Mii have?
All Miis will have just a single crush at a time. To act up on their crush if they are in a relationship already, they need to leave their current partner for the new Mii.
Is it necessary to pair up Miis?
No, you can choose to keep Miis single as well. But if they have fallen in love, then they will require your input to help pair them up.
Can Miis have multiple partners?
No, Miis can only have one partner at a time.

