IDunGiveACarp
Dan Howell, a.k.a Danisnotonfire, does not appreciate giving out dating advice. Especially to his crush. Phil (a.k.a AmazingPhil), on the other hand, desperately needs to know which which of two options is more romantic, and Dan is the only one he trusts to give him sound advice.
Or
The one where Dan is desperately in love, while Phil is desperately clueless and somehow Phil manages to convince Dan that watching a sunset with him before going to a candlelit dinner so that Phil knows which one is better, but not for Dan, for his crush (Sam).