This story is a sequel to Rainbow Dash's Spike
Love is a tricky subject. It isn't something that just affects one pony, or two, but everypony around them, It is something that affects everypony differently, too.
Spike and Rainbow are going to have to learn this the hard way.
How will their friends react to it the same. Will they all be happy for the new couple? Willthey try to break them apart?
Prequels:
http://www.fimfiction.net/story/100505/to-live-is-to-love
http://www.fimfiction.net/story/83194/rainbow-dashs-spike
Events from those stories have influenced this one. Some things might not make sense if you have not read these stories.