Well, @Facade, I wrote you a whole response thinking you were the one who’d done the inviting, and now I find out it was your SO who invited you. You gave the kind of reply my husband always used to give me about something I wanted to do regularly, and it led to a huge number of fights. It took me years to learn how to stop running headlong into that situation. So here’s what I was going to say, and you can just reverse it: I’m speaking for him and not for you.
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I understand. You don’t want him to just be willing to do it with you. You want him to want to. To want to be with you as your companion. And his constantly reminding you that it isn’t his thing ensures that you have to feel like you’re dragging him along under duress if he goes, and you’ll be aware every minute that he doesn’t really want to be there, and you may even have to hear about it afterward. That’s not your idea of how to enjoy something together.
You want him to understand that it’s not about the thing per se but about doing it with you and that he should be willing to do it for your sake just as you would go along with him to do something that’s not your thing, for his sake.
Maybe you’ve even offered him a fair bargain: “Look, I’ll be happy to go with you to watch the fish in the aquarium because that’s what you want to do, even though underwater life isn’t my thing, and I’ll enjoy knowing that you enjoy it. Couldn’t you just come along with me to play miniature golf without having to remind me that you’d rather be watching TV?”
He sees your request as a demand and the use of his time as an imposition. And once he has made that plain to you, it just doesn’t feel very good to have him go along in that spirit. In the end you’d rather go alone than accept such a poor concession from him as if it were a big sacrifice just to spend time with a loved one.
Sorry, my dear, but that’s your expectation. You won’t change what he does or doesn’t want to do. Willingness might be the best you can get. I suggest one of two things:
(1) Don’t ask him if he wants to go miniature golfing (or whatever) tomorrow. He doesn’t. Tell him you’d like to go miniature golfing tomorrow and you’d really like it if he’d go with you. If he wants to be gracious, he can agree without having to give an opinion on the activity, and so you don’t have to hear it one more time.
or
(2) Forget about doing this particular activity with him. Separate what you want to do from what you want him to do.
Like it or not, you’re with a man who doesn’t like to go miniature golfing. Find a friend who does, and do other things with your SO.