I've just been reading another MN post about masking that is trending and didn't want to hijack the OP's post so have started my own. The posts in response to her question really resonated with me and I think my DP may be 'masking'. (apologies if I'm not using the right terminology here or below)
In public situations / at work DP (most of the time) seems to fit in and is almost like a different person, and then it's like it all gets too much for him and as soon as he comes home he has a bit of a meltdown. It's like he finds it exhausting just existing day to day. I'm finding it really difficult to deal with. A few people have mentioned to him/me in the past that they think he might be on the spectrum and I've also thought it myself. (e.g. when we watch a film or tv, I often have to explain things that I think are really obvious - especially if there is no verbal communication / conversation between characters to explain the situation and it's based on more nuanced body language or facial expressions). He is also very strict when it comes to routine (has to go to the gym on the same days every week, even if it massively interferes with something else, has to wear the same things to the gym, has the exact same thing for breakfast every morning); is very sensitive to sounds like chewing, coughing, a small sniff, and even barely audible music from neighbours (I have to concentrate to even hear it) to the point where it makes him really angry and he will just go to bed and put earplugs in or I will eat upstairs to avoid upsetting him; and is really disturbed by certain textures when eating (e.g. hates anything mashed or any kind of soup / sauce). He has a lot of difficulty regulating his emotions - particularly when he is at home with me or in situations he finds stressful (airports, for example) and he will be set off by the smallest thing – like a check in desk opening 5 minutes late. As he has gotten older he has got increasingly anxious about social situations and he has a small group of friends that he doesn't see regularly. He also doesn't enjoy spontaneous plans and will get quite upset if things change last minute. It sometimes feels like he uses up all his 'social energy' on everything else (maybe 'masking') and I just get the meltdowns and all his frustrations. It's exhausting and I feel like it's also exhausting for him. Does this sound like he might be ND? I don't really know how to talk to him about this or if I even should. He has not reacted well when people have mentioned it in the past (although he has once said he thinks he might be too – but he didn't want to talk about it then and never brought it up again).