[question] bug?any help?

So this has happened a lot in my game (mobile) where I’ll put a man and a woman in a room and for hours they’ll just stand there not looking at eachother and saying sm along th lines of ‘nothing better than spending time with my family’??I have enough space in my vault for more people so why won’t certain people make a baby?I have to go through and trial and error for ages to actually get two people to even look at eachother