The box in the corner is your friend..
As far as I remember there are these main paths going forward
Both faithful
Anne cheat
Tony cheat
Both cheat.
A swinging path
And to cuck or not (not sure if this is as big as it was compared to the old version)
You can split them down further by adding high/low relationship points to them. Though if the low relationship points are low enough, you don't get the choice to if Anne cheats or not and it could result in a premature game over.
Ultimately its
Faithful
Hot wife
One cheats -*2 (one of these may lead to the cuck queen)
Both cheat (danger of early game over)
So there is at least 5 paths there, there maybe more... though ultimately some will be the same, just different ways to get there.
I don't actually know if the 75,000 or 150,000 choice matters without the need for the above. Ie the £150,000 job will likely mean more scenes with Martin, but without Anne being on the unfaithful path I doubt it matters.
There's lots of ways to play this now, so the best bet is to make as many variable choices saves as you can