£700 is a hoor of a lot of cash to be spending on one hoor...
If I were you I'd spend the cash on an Easyjet flight to Berlin, 3 nights in a decent hotel, see some sights, take in some culture, go to a Sauna Club/FKK/Party and broaden your horizons.
Get a girlfriend for watching movies and sleeping with over night. Spend what you have left over from Berlin on taking her to Nandos.