I'll take a look and see what might be going on. It should appear at the end of dates after you've known a girl long enough, have sufficient affection & you've gone through the love confession scene without completely rejecting her.
Sorry i brought it up again, it might have been just my impatience - in my latest session moving in worked as normal, only a few good dates post love confession.
Questions raised: So it is possible to move in a friendzoned character? Staying freinds only means you cannot marry later ?
That's right, you can move in a friend-zoned character, but you can't marry them. That'll change in the next update, as you'll be able to confess love to the girls yourself, which will let you undo an amicable or complete rejection.