Hi Velvet, I met and married my now ex husband when I was younger than you.
The marriage after 12 years broke up, but not because of any fear of missing out.
So I have lived alone either with my dc, or when they became independent, proper alone.
I’ve been lucky enough to find a partner who like me, also enjoys his own space, as well a sharing our home.
So I would say, that for me, I would only pine to live alone, if I felt smothered by my partner and/or household situation.
Yes, you can be deeply in love and devoted to your loved ones, but I believe it’s so important to retain some of your own “self”, and for you and your family to respect each other’s space and individuality.
After all, you probably fell in love with each other as individuals, so why can’t you share your lives, without it being 24/7.
If you have kids, take the load of each other equally, so both of you can enjoy “me time”.
To either enjoy a hobby, or have the house to yourself, even just for a few hours.
Make it a priority to be mindful of each other’s needs as the individuals you still are.
It really can be like having the best of both worlds…. but you’ve both got to be willing to do it.
If one partner can’t, or won’t, then I’m afraid you may always pine to live alone, even if that’s not what you truly want, if that makes sense.
By the way, what I’ve described works for us, you may find a different solution for you… I was just giving you my viewpoint on what works for us.
Best wishes.