Like one month's salary? The whole point of having a "guideline" like that is that a month's salary is a lot of money. To eveyone, whether you earn £10K or £300K.
We don't have a huge amount of money, but we don't really have any debt, and we like having stuff, we live in a materialistic world. If dp is happy to spend thousands on a flash car, or hundreds on an electric drum kit, if he wears designer clothes (albeit from TK Maxx) and has a top of the range mobile phone, am I being unreasonable to think that I should get the same treatment? A ring to wear for the rest of my
life, to hand down to grandchildren? A symbol of our relationship.