maybe you shouldn't have become a landlord then. I don't see why anybody should care that your investment scheme didn't pan out.
4 years later when I had to move for work and family reasons, we were still in negative equity, so we had to rent it out. Fortunately we had good tenants, and the income just about covered the costs including the interest on the mortgage (which we could offset against tax, can't do that now), which was a good job as we ourselves were paying far more in rent elsewhere. Fortunatly we'd gone for an interest-only tracker mortgage, as we needed everything we were paying into savings to pay the rent on where we were actually living.
Eventually sold in 2016 for the price we paid 9 years earlier