Bit of history first:
When we met DH was in a creative field with infrequent, well-paid work. The work vanished when we had kids, he found bits and pieces part-time. I also had insecure work, some of it creative, and at various points when kids were little we had a lot of crises and stresses about money.
DH didn't try to find alternative careers / jobs / sources of income. I found an alternative career and became the main breadwinner, sacrificing any chance of returning to my creative work. He continued to work part-time, infrequent jobs, bringing in little money to the household and enjoying days doing creative pursuits with friends.
A few years ago he got a job teaching his creative profession. I was able to open a pension and pay into it the money I used to have to pay him. His salary improved our lives, we were able to take holidays. We're now paying one DC's rent at uni with another due to start.
He hates teaching and wants to stop and retrain as a celebrant. I've heard of a few people managing to work full-time at this but I've also heard people say the market for this saturated, and we've no way of knowing until he starts how easy it'll be to find work.
I feel stressed and worried that the burden of paying the mortgage, paying for our lives, saving into a pension, and getting the kids through uni will all fall to me (again).
His family are being encouraging and supportive and I feel I'm the bad guy for not enthusiastically embracing his decision to leave his job.
I don't know how to deal with this. I want to support him. But I don't feel it's fair on me.
Neither of us are good at talking to each other about problems in the relationship. I've tried talking about the above and he tells me he feels unsupported and then I feel it's my job to come up with options to make it work. He wants me to encourage him the same way his family do.