Heaven & Marriage

I see a lot of people say we won’t be married in Heaven (which I don’t dispute) but then they say that we will be married to Christ (or already are) and earthly relationships are just a projection of that, but that confused me a lot.

Husbands and Wives have sex, go on dates, buy gifts for one another, etc. and i don’t think you do any of that with Christ

This is not to say that we should love our spouses more, of course not, but surely our “marriage” to Christ was just a metaphor, and our love for Him is different?