<human>: We're both early 40s, married 15 years, no kids.

She's pretty, nice little body, perky and cute.

In my 20s and 30s I used to want it constantly, and she wanted it regularly and it was good.

In recent years, my sex drive has slowed a little bit, not as "crazy horny" all the time, but still would like it regularly.

Thing is, wifey just doesn't do it for me anymore.

We're together every day, our relationship just seems so familiar. We're "life partners" and we love each other, I just don't get sexually hungry for her anymore.

I was thinking maybe it was a medical problem, so I got checked out and everything is fine physically, and hormonally.

Then recently she went away to visit family for a while and while she was gone, my sex drive exploded! I was crazy for porn like I was a teenager again.

I really started to miss her, bought her a valentines gift of some sexy lingerie, and when she returned from her trip we had a nice romantic time, some nice sex, and it was good. I hoped things were back to normal.

But then after a few days, it's back to not really being into her again. Just not interested.

In a weird way, it kind of feels like we have a "family" relationship now. Just not really sexually attracted to her anymore.

Any tips?

Provide a brief overview of the text.
<bot>: 40s, married 15 years, no kids, pretty wife, but I'm no longer sexually attracted to her. Any tips?