Your partner could start to annoy you if they try to get overly involved in your career or other work. They think they're just offering support and good advice, and they could think that they're being helpful when they set a list of expectations for you to adhere to. But -- surprise, surprise -- this could actually come across to you as meddlesome or even controlling.
The thing is, their advice certainly comes from a good place -- they have a wealth of experience to draw on -- but it could fall on deaf ears. Or, they might be the one with the deaf ears, meaning that they might not even understand your work. They tend to misunderstand your motives and they end up giving you advice that just doesn't apply. The pressure is unwelcome and unhelpful to you, even though they set out to be a good influence. Each of you has good ideas to bring to the table. One of you might be great at organization and planning, or you might have a natural flair for diligence and motivational techniques. So you should encourage your lover to offer that advice when it's asked for, instead of giving it out unsolicited. You should both try to remember that you can teach by example, and that a subtler approach can often work better. And after all, you're supposed to be romantically involved, not be each other's taskmasters or bosses!