I'll preface this with saying that I do have a couple of friends with whom things have remained ok. (Interestingly they've both worked a lot with kids though.)
Bar those two I've become distanced or fallen out with all of my friends who've not been able to or haven't wanted kids.
I had one friend come and stay for a month just after ds was born, a best friend. It was a disaster. She dislikes kids and clearly resented the time i was lavishing on ds (who was three months so still very needy) instead of her and became quite spiteful. The friendship collapsed. A couple of years later we tried to rekindle it but she still gets spiteful digs in and I'm over trying anymore.
Others friends have come and stayed and have been similarly annoyed at me not wanting to go out drinking until late etc.
I have an old friend staying now who've I've not seen in years. We used to go out partying a lot. She's being really impatient and snappy with ds (he's 3 so he can be a little irritating even to me as my pfb
). She's clearly annoyed at me paying him attention. He watched tv for 3 hours yesterday so we could chat and I got him to bed early. Today she's sat around being annoyed that I'm doing so much housework (I stuck a load of washing on as he got plastered in mud and peed himself) and have been making him and us breakfast lunch and tidying up after, nothing excessive.
She's constantly wanting to chat or do something and I'm trying to balance that with giving ds enough attention so he doesn't act up and wind her up even more thus making him even worse (the toddler and impatient person vicious cycle.)
Then I say ds is going for a nap and I'll try to nap too (she wanted to stay up until 2am drinking and ds was up at 5am so I'm really lagging.) Shes all of a sudden got a tremendous burst of energy and is slamming around the house for the last hour and a half. 
I'm dreaded ds waking up and having to keep the pair of them both happy but apart. Ugh.
She wants to do long involved dinners and chats and that just isn't possible!
Someone tell me they can retain some old friendships without them thinking you're the most boring and rude fart ever and you being a half assed parent?