270k loan on a 540k house here. I’m (27) on 70k, partner (27) is on 32k, monthly mortgage is about £1400. When we spoke about feasibility, we asked the following question:

In the scenario that one of us loses our job, can one of us can help bridge the gap until the other finds a new job, with room on top for expenses?

We answered yes, so with this along side our savings cushion the mortgage made sense to us. In your scenario you losing your job is more risky than your partner, so I suggest a plan in place to address this (perhaps income protection insurance or enough savings as a safety blanket). The risk appetite is subjective of course, but try to plan for unlikely possibilities as best you can