How comfortable are you reading 5 card spreads? Because I always find these to be quite challenging.Coffin doesn't necessary mean bad. It can be change, reincarnation and transformation.
Before you start thinking that this is a negative spread, I think you have to understand the rest of the cards separately. For example (generally speaking), dog = friendship, loyalty; lily = intimacy, sexuality, sun = passion, energy and clover = luck, happiness.
You really need to understand the meaning of each card before you try to read them as a "sentence" or message.
Also, what I try to do is focus my mind on the middle card as that is the main theme of the spread. If I read cards from Left to Right and suspect that I haven't quite fully understood... I use mirroring.
So I'll read 1-2-3-4-5 first
Then I'll take notice of card 3
Then I would do 1+5 and 2+4
Usually, step 3 will confirm what step 1 has already said; if it doesn't really... Then you know you've done something wrong.
You're spread suggests to me that things are going to change and your relationship with someone will grow intensely deeper, quite suddenly. That coffin is not bad when you consider the rest.
Hope that made some sense x