Most Helpful Girl
There's a point in almost every relationship that comes to this. Usually it happens earlier though (for me it's about 2 months) and you have to really communicate to your partner what you need. And please don't say space, that makes things worse in my opinion because that's like the nice way of saying "get away from me" without being too harsh. Maybe spend more time together or go out more because I know lots of couples get stuck in the same old routine. Do something fun and different together!
And for the record, everyone fights, it's how you work through them that counts. Me and my boyfriend will fight about things and kind of stay away from each other for an hour or so and eventually one of us apologizes and we talk about it, or it it's really stupid (such as not opening a door for the other) we'll just drop it and act like nothing happened because we both agree it was stupid.