I can't imagine ever not loving and adoring my adult children. They're the best thing since sliced bread and then some. The thing is, they don't become adult overnight so it's easy to go on loving them. I think the most difficult thing is having to stand back and let them make their own mistakes and to find out things the hard way. (My mother wasn't able to do this with the four of us and it led to some awful times in our family, the deep-down hurts of which have never healed properly even after 30 years. ) And (boasting mum alert!) I'm incredibly proud of what they have both achieved and that they both seem to have turned out to be decent specimens of the human race.
Aloha has the scenario about right for us (although not in the garden, cos we usually live in chilly Scotland!). Some of our best times have been when both boys are home with their DW and GF and we have such a laugh together. Ds2 is a more prickly character to deal with than ds1 but any arguments sort themselves out eventually. Ds2 and I are basically alike in character, hence the occasional sparks.
DH and I both get kisses and hugs from the boys and often more information than we want/need from ds1, lol!! Certainly I am aware of their faults (ds1 regarding DH as the Bank of Dad and his propensity for losing things, ds2's tendency to be pompous) but then who doesn't have faults??
We're also fortunate in that the boys have lovely young women in their lives and that has brought a whole new enjoyable dimension to us. Ds2's gf has been harder to get to know, as she is quiet and it's very difficult to 'read' her but I was touched that she sobbed her eyes out when we left for Indonesia. In fact, she has missed us so much, according to ds2, that I tease him that she's only his gf because of us.
We all keep in touch via email and phone calls (us in Jakarta, ds2 in Scotland, ds1 in Los Angeles) and I get grumpy emails if I haven't got around to sending them a message lately. It's a reversal of the usual situation when adult kids don't contact their parents!
Oh, and they both still expect Advent calendars and presents from Santa, so really, they're not grown up at all, are they?
I could go on rambling about them for hours but will shut up now. I bet you wish you'd never asked, eefs!!