Provide the theme summaries for the following conversation: 

Mari: How's it going, sis?
Louise: Yeah, bit nuts, kids are going stir crazy with this shitty weather! I'm going slightly mad, as the Queen song goes!
Mari: Sorry love. Look, I've got a couple of days off at the end of the week, shall I come round and we'll all go out somewhere.
Louise: You're a lifesaver! Yes, I'm sure they'd love to go swimming, we could go out for tea or lunch then.
Mari: I'll pick them up Friday too and we can go to soft play or out somewhere if the weather's better. I'll take them myself, if you want.
Louise: You are a wonderful girl! Harry is home Friday from Brussels, so that would be a lovely end to the week!
Mari: I bet you miss him so much when he's away, hard for you, I know.
Louise: Yeah, I mean the money he earns is phenomenal and I don't have to work anymore. But I do miss the gallery sometimes.
Mari: I know, and of course, the summer hols are here and 2 kids to amuse. What about holiday club?
Louise: Hmm, Sid isn't keen, but some of Phoebe's friends go there when the mums are at work. We might give it a trial, I'll ring them later if I can find a number to call.
Mari: The local council organise it, don't they, just ring them up.
Louise: Oh yes, of course, thanks love!
Mari: So, what about Thurs for swimming, shall I come over lunchtime and we'll take it from there?
Louise: Yes, remember to bring your costume, we have to go in cos they're under 8.
Mari: Yes, maybe a few nice single dads there?
Louise: Haven't noticed many! Maybe single grandpa's! 
Mari: Well if they're 40ish or even a well preserved 50 something, I'm up for it! I like the older guys.
Louise: Oh yes, wasn't Ross about 45, I'd forgotten!
Mari: Well, me being 29 and all wasn't a bit weird, I miss him. 
Louise: Well pity he wasn't up for having any more kids. How many did he have with the ex?
Mari: Yeah, 4 and a couple were grown up. We still see each other around, I think he's seeing someone more his age now. Pity.
Louise: Yeah, he was great. Never mind. OK, see you Thurs about 12/12.30ish. Give me a message or a call first as a heads up.
Mari: Bye love!

Summary: 
Louise is fed up with looking after her kids so Mari will take them somewhere on Friday. Harry is home from Brussels on Friday. Louise and Mari will have a lunch at about 12/ 12.30ish and then will take the children swimming on Thursday. 