There are 2 non-negotiable hobby-related events per year, and additional 2 which are very important to me, but can be negotiable. All other (around 5-10, depends on the opportunities, per year) are negotiable – this means that when an opportunity arises, I consider whether it is ok with him or my other things to take these on (so some are turned down by me without consulting him knowing we already have plans or we have spent too little time together recently for example) or I consult with him and ask whether he thinks it’s fine if I attend - if he doesn't approve, I won't attend. Mostly, though, I turn them down without consulting him. When I was single I took all those opportunities and looked for even more, now I have chosen the most important ones to participate. I have dismissed all summer hobby events to spend more time with him during summer and vacation. If we have something planned, I will choose our plans (it has happened perhaps two-three times that we have had vague plans which could be moved to another weekend and the hobby event that suddenly came up has been something very special and I have mentioned it to him and he has told me that it is OK for me to attend if I want to and then we have moved our plans). The most important dates for the 2-4 events are known months prior the events.
If I make plans with friends (I see each group (3 groups altogether) on average every 2-3 months), I will tell my friends which dates are already full (including also those on which we have specific plans with my partner) and usually the meeting dates are set several weeks prior to the meeting itself and I tell my partner as soon as the date is set.
If I see that busier times at work are expected I will tell him as soon as I know it. For example, the entire November has been a nightmare at work, I saw it coming in the beginning of October and right away told him what to expect in November.
My hobby classes are each week on Mon and Wed. I prefer to attend these as much as possible, but if there is an event he wants to attend together with me, I will ditch my class and go to the event with him. Similarly, if I find something interesting for us both to attend and it falls on my class, I will ditch the class and suggest him we should go to the event.
I also have work—trips around 2-3 times per year, I will tell him right away when I know the date (these are known months before the trip).
But yes, we do not make much precise plans for ourselves. Maybe once-twice per month something is thoroughly planned. Other times we just suggest things to do during the day (like during workday either of us suggest “why don’t we walk home together after work”). So basically I know anyway that on every weekend we do something together, but whether we go on a walk, swimming or to the city is not planned until Saturday morning. Basically, it’s like – I feel like I do not have to plan things with him so specifically, because it is known that all the free time is spent together anyway. I have told him it previously, but he wasn't very happy about it. We planned our time when we were dating and did not live together, but now as we live together, it is natural that all other time is spent together (expect I would love to have some alone time other than with my hobby or friends as well – which I do not get, as he wants to spend all my “free time” with him).
So basically, I really want to pursue these other things and I feel like I do my best to consider him in my plans, but it also seems like he doesn’t see that or wants something else from me.
Still, I guess planning our time could be the answer. However, I also feel like he doesn't put much effort in it also. He knows (at least I think so?) that if we have specific plans made, I will choose our plans over the other potential plans so he could as well tell me he wants to "book" me for this or that date. But as I see that could be the answer, I will try to have a chat with him about it.