<human>: Can you succinctly summarize the text in 1-3 sentences?

F25 (me), M27, together 5 years. We're getting married and I love the guy unconditionally. However, after our 3rd year together, he no longer shows any interest in celebrating things like birthdays, Valentine's, anniversaries or other "couple" events. He does New Years with friends and Christmas is a family affair. It makes me feel shallow to want dinner dates or have plans for Valentine's day. 

I hate feeling like I'm keeping score, but for the past 2 years I planned and paid for a weekend getaway to celebrate our anniversary. Same with Valentine's day-I'll decide on a place to go or make reservations. I recently got a trial wedding makeup done and didn't want it to go to waste so I brought up the idea we could go out to dinner. He took me to a taqueria. I felt really out of place (I love cheap mexican food, but here I am with super fancy makeup on and hair done). He pointed out that I looked over dressed. But I'm just rambling. 

Sex is crap. He works a lot so I'm not going to complain, but M-F the routine is he eats whatever I cook for dinner (or skips if he went out with work) and then settles into the couch with his smart phone/computer. No attempts at engaging me in conversation and if I do he usually says, 'wha?' because he wasn't listening. Saturdays and Sundays he'll sleep till 11 and then work on his projects or play on his computer. Repeat. 

I know we're past the honeymoon phase and relationships change over time. Just wondering what I should expect for the future and if I should continue planning things if I want them to happen.
<bot>: After a couple has been together for awhile, is it the responsibility of the person who wants to do "romantic" stuff to plan it all?