<human>: Can you condense the text into three sentences or less?

My bf and I have been dating 9 months, and we've known each other for 5 years. It's been a supportive, committed relationship, but there's been no mention of 'I love you' yet. Due to financial reasons, we decided we're going to rent a two bedroom apartment together, but he recently brought up some concerns that (since he's in a high-stress job and we're on different schedules) we'll start to fight a lot more or we'll find we don't have enough space. We bicker, yes, but it's usually lighthearted, and I can only think of about two or three times that we've fought. After an argument, we always talk it over, and rarely stay upset for more than a day or two. Altogether, I know there aren't a lot of signs that we'll end up at each other's throat, but I'm worried about whether or not moving in together is a good choice. I'd also like to hear some advice and tips on how to keep everything going well, hopefully it can put both of us at ease.
<bot>: Moving in together after 9 months, just worried something will explode and go horribly wrong, and need advice to feel better about it.