Have been so stupid - what now?

[Whatn0wthen]

After struggling along to try and protect the DC and keep up appearances of a happy marriage, I discovered further proof of cheating this morning (having already forgiven past indiscretions like the complete mug I am). Unfortunately we are also in a mess financially after H convinced me to jointly take out a second charge mortgage (secured loan) to cover his enormous debt. To be clear - although I’m a SAHP he earns more than enough to cover all outgoings by a big margin - but has been over spending for a long time on going out, recreational drugs and presumably other women - hence the debt.
My question is - please does anyone have advice on what happens with the secured loan when we separate? I realise I will need to see a solicitor ASAP but I’m so worried about the fact I was stupid enough to sign the bloody thing. H convinced me that once all the debts were consolidated and we were paying back at a low rate - that would take all the pressure off and we could be happy again. Instead it’s just got worse.
I have been so stupid but I just so desperately wanted it to work. We’ve been together 13 years, married for 7, two young DC. What the hell do I do now?

The loan I guess will just reduced the equity on the house which will make less capital available to be split.

Don't beat yourself up as its likely it won't make much difference as whilst the debt was his it would still need to be paid.
Do you know his earnings and can you work out cms and tax credits if you split?

What other assets? Pensions etc.Is there much equity left in the house?

Finances always feel tough or impossible at the outset but overtime you will find ways to cope.It can often take a few years to rebuild but generally you will be happier as at the moment you don't have financial security as your H seems reckless.

Thank you Life - just the fact that someone has cared enough to reply has made me cry!
I do know his earnings so I guess there might be something online where I could calculate cm. I’m completely clueless when it comes to tax credits as although things have been bad I still never thought it would come to this. Similarly I know he pays into a pension through work but have no info on that - I guess a solicitor would need to know details?
I do know we have more equity than the loan amount so that’s something at least. I just hope we’re not tied to staying in the house for a particular period of time or anything like that. I read through the small print but feel a bit panicky I might have missed something- again because I just naively thought this would never happen...

Get to citizens advice to start with they should be able to help you. And then a solicitor.