Was I wrong to storm off from angry DH?

[Onsera3]

Set out on Sun am family outing. Chatting with DS 2yo in back of car. DH says how he will miss taking DS to see MIL throughout week/weekend if we emigrate to my home country- as we have been making plans to do. Starts asking me for solutions to raft of problems that might arise in 10 yrs if we do. I try to suggest things but he points out more problems and I say can't and don't want to waste energy trying to solve problems that may never arise, esp at that very moment. (I have morning sickness and been to hosp 3 times this week with bleeding). DS has dozed off now from no interaction during drive and I wake him and ask DH again to drop it. Keeps going, I try vainly to offer solutions he points out more probs I say don't want to discuss now he gets annoyed and shouts 'It's my f-ing life I should be able to discuss it!'

I hold finger up to his lips in 'shhh' gesture and say firmly 'stop' but he gets more agitated. So I say I'm taking DS and making way home. He tries to stop me and says DS is upset but I say I won't be sworn and shouted out in front of DS and walk off.

He catches up to us as we make way to train and says stop you can't manage trying to takes bags off me. But is still grumpy and annoyed and saying I'm upsetting DS rather than apologising. I say leave us you are making fuss and security is everywhere here and you will get removed. He walks off.

I text him and said I won't be spoken to like that in front of DS and he picked an inappropriate time to force that conversation. Said didn't want to see him for rest off the day.

He is usually model DH- helps a lot around house though he works and I am SAHM, very hands on dad, usually quite selfless.

But he is terrible in arguments. He becomes very irrational. He said his parents never argued and he never argued with sibling. His mum corroborates this. I also suspect he may have Aspergers - his father definitely appears to.

I worry I may have overreacted? My father was hands on dad but had drinking problem so could sometimes be abusive. My last live-in boyfriend was abusive. So I am very sensitive and have zero tolerance to being shouted at aggressively. I believe you can have healthy arguments without either.

Was I being unreasonable?

I didn't wrote in the post that I said shut up?

I said can we not have this conversation right now, please don't make me worry this morning about things that might or might not happen in 10 years let's try to focus on the next 5, look DS is falling asleep lets talk to him to keep him awake, then again 'please let's not talk about this right now.'

The timing was a big thing for me because it was first time doing something the three of us in weeks as I have been ill or at the hosp. DS was very excited and he was going to sleep through it (and maybe wee through car seat) and it was going to turn it into an argument instead of an outing. We could have had it a couple of hours later when DS was napping in bed.

He swore at shouted so I gestured with my finger in the 'shh' position in front of his mouth. He was physically able to talk and continued to do so - as I said.

I appreciate getting other people's POV and I know I might not like what they are saying but I don't think you have read my post carefully or you have jumped to conclusions.

I have said I think I acted incorrectly but I really don't see that I was being abusive.

Just checked and I didn't say I thought he was being abusive either.

I said was I being overly sensitive because I have been in abusive relationships in the past.

I don't think my DH is abusive. I wouldn't stay with him and raise children with him if I did.