Blarg, spinning inside in trainers is just terrible. I did 2 winters on the trainer every day and haven't done that again in probably 2 years following. Fat biking / running / anything other than sweating in a corner is so much more satisfying to me (and I live in Iowa => the weather here sucks pretty much all the time).
I used to do the same thing. At some point I was like @#$% it , and #$%% me for thinking my bike will melt from bad weather. I bought winter gear, toe covers insulation base layer whatever, and now I ride through winters. They are hardly distinguishable from spring and fall here anyway (Holland).
There is also a strange kind of satisfaction you get from going out when it is not the "cycling season" your roadbike caked with mud. You can not help but feel at least a little bad ass, even if that is only in your mind. Of course I am still so OCD that I carefully clean and grease the bike in the weekend.