i used to get really tired of it all, i got in to the trade coz i loved bikes and riding but after a few years i got sick of the sight of bikes and felt like when i was out on the bike it was work aswel. it happened twice that i was really sick of it all.
now i am out of the trade my interest has really come back with a vengence in the bikes and the riding, i'm back to training more regularly aswel as opposed to just going out for general riding and i'm doing a couple of races for the first time in years.
i do find that the clocks changing helps though, it's the sign of the summer coming and warmer night rides after work etc. i don't like the winter mainly because of all the extra layers needed and then feeling restricted on the bike.
take a break from the building but try to keep riding, fitness is hard to get back when you lose it, i know! i'm sure the warm fuzzy feelings about bikes will return, it's a sickness!
You have enemies? Good. That means you've stood up for something in your life.