Any tips to make them fall in love faster ?

All you can really do is level them up and hope they fall in love. You have very little direct control of things in Tomodachi Life

Give them the same gifts so they will spend more time together.

delete everyone else not in a relationship and give them the same items

Try giving one of them (the one that has a higher "opinion" of their partner) a travel ticket. I found it to be a huge boost to their relationship. Be aware tho that tickets are rare. And there's a chance they'll take their best friend with them instead 😬

Edit: I misread the title oops. My advice still stands for active couples only. So if you want them to get married faster or their relationship is dropping, give them travel tickets.

You have two means of indirectly improving relationships between two Miis without save editing. The first and most conventional way is travel tickets. Any friends a Mii brings along will have their relationship increase one tier (ex. good pals to great pals). Unfortunately, it's random who a Mii brings along and they won't bring anyone along they have a bad relationship with.

This brings us to our second method which guarantees results with a bit of patience. Let me introduce you to save scumming. At the start of each day, check the relationship between the two Miis in question. If it has improved, save and get along with your day. If it hasn't, close the game without saving and open the game back up. Repeat until the relationship has improved. Repeat each day until both have a great relationship with one another. Ideally, both should be best buds, though at bare minimum, one Mii must be "great pals" and the other "good pals" with each other. You can also save scum to try and force the confession problem to appear once their relationship with each other is high enough.

Finally, let me debunk a few myths. Giving Miis the same gift will not help relationships. It's a placebo. Similarly, apartment proximity to one another has no impact. Finally, the compatibility tester is just for fun and its results aren't indicative of actual compatibility between couples.

Aaaaaaa

Here are tips base on what i know

1. Have the two Miis you want to be a couple to live right next to each other

2. Have them both have the same traits so they can hit it off more often
   3.Give them the same Gifts since they can hang out with each other more

That what i got so far after a week and a half on my island i had
3 Married Couples with Kids
6 Regular BF/GF Couples

If you do what other say in the comment or what i say as well then no doubt ull get more couples :)

In general, my favorite way of making miis fall in love is:

If you yourself are one of the two miis: Start the game over and when you make the other mii, set them as your spouse.

Then, whether or not you are one of the two miis or not…Unless you absolutely have to, do not make more miis other than those two. They will eventually get closer & closer. Then fall in love!

This may work, this may not work, it has worked for me pretty ok 🤷‍♀️.

is that gerard way

give them both 3ds xls they'll hangout more

throw your 3ds out the window and play the sims /s

fr tho, you have little control over what happens in this game, you’re mainly just a spectator of sorts

Send them on trips together a ton with plane tickets.

Delete every other mii on the island so there’s be no competition. Easy!

Lace there drinks