God he's lucky isn't he?
What a prince, making an effort, taking you to nice places like that. What woman wouldn't dream of sitting in the dark only watching TV all the time? I say that as woman who enjoys watching TV with a partner and cuddling too. I don't have to be doing things all the time.
OP, as a woman who is a little older than you in my mid-30s, why on earth are you with a 50 year old man???
A fling or friends with benefits is one thing, but where do you actually expect this relationship to go? It's possible he's always been the low energy type, but if you stay longterm with him and he's like this now....what do you think he'll be like in another decade???
Well what do you want to do??
This says a lot. He's either never been more more active, or he's so bored with life or been & done most things that nothing has his interest any more. He just doesn't have that itch that you do. It just wouldn't occur to him to do anything away from his screen, and you slot nicely into his time with his screen.
I appreciate that it may sound as if he wants to compromise, but that the way he turned this question around reminds me of men who say 'Ok if you want to get married, you sort it and book it then. It's just a piece of paper to me'.
What you want OP is mutual enthusiasm, not passive agreements and someone just tagging along because they've been told to.
Your know, there are plenty of women who seem to get to their 50s and 60s and they feel raring to go, want to travel, want to feel alive and joyful. They usually come on here to complain about husbands who sound exactly like your partner, and sometimes they divorce their husbands because they're fed up of being zapped of energy with someone who is very ready for the pipe & slippers stage of their life.
You feel bad for feeling the way you do? Raise your bar. Older men would stop feeling entitled to younger women's attention if we simply stopped giving it to them.