DS1 is going through a terribly clingy phase at the moment, due in part to his age, compounded by the fact that the nice new gleam is wearing off DS2 (17 weeks). He's not at all jealous towards DS2 - absolutely adores him and cuddles him at every opportunity - but is obviously sensing that he is no longer The One with me and does not want to let me out of his sight or grasp.
His sleep has gone slightly squiffy, which would be alright if he'd accept DH going to him (I'm dealing with EBF DS2's 40 million wake-ups) but he's started escalating and actually kicking/hitting out at DH if he goes into resettle instead of me. He's gone from allowing DH to put him to bed completely to only allowing him to do it if I'm in the room as well, or at least very nearby giving reassurance - I'm also doing the 'looking busy' thing, popping in and out so he knows that I'll always come back. The PILs 'helped' with getting the DCs to bed tonight as DH is working away, but that actually consisted of sitting with a hysterically shrieking DS1 downstairs while I put DS2 to bed upstairs. They had faces like thunder when I went down and FIL actually said to DS1, 'I'm very unhappy with you!'
I'm sure they would have liked me to give him a 'telling off' (for what, I'm not sure), but I gave him a cuddle and explained quietly that mummy would always be there but that she had to see to DS2. Don't even start me on nursery drop-offs. They're fucking traumatising. Nursery actually called me back one morning because he'd vomited from screaming so hard 
I'm trying to give hime one-to-one time where possible, but obviously this is pretty limited to weekends when DH is around. I try never to refuse his requests for cuddles. DS2 must needs be present a lot of the time when he's playing but I try to ensure that there's a balance between undivided attention from me, but also involving his baby brother, which he genuinely seems to enjoy.
Is there anything more I could be doing, or is it simply a case of do as I am and ride the mo fo out? I'm finding it quite upsetting 