Love vs caring?

I've been going through some tough times lately and my SO has been there for me always, just to listen and give occasional reassurances. But the other day we were talking and he got very serious, put his arm on my back, and said "It's all going to be ok. We are going to get through this."

What does his use of 'we' vs 'I' mean?

Because my problems dont directly affect him, so he really doesn't have to own them.

Is that love or caring?