Do I have to pay spousal support just because I have a higher income even if he is capable of supporting himself?

My husband and I got married overseas in 2007. We moved back to the States in 2010 and lived in A from 2010 to 2011. I'm a US citizen, he is on green card (he got it by being married to me). We haven't been living together since 2011 though we have been filing taxes jointly. Between 2011 and now he lived in State B, while I lived in a variety of different states and overseas due to jobs. I make 4 times more money than he does, but we've been living apart and supporting ourselves on independently, and he definitely is capable of making a living and earning a far better wage than his current income, he simply refused to in spite of my offer to help time and again. We have no children, no properties, and no bank accounts together and before we went our separate ways in 2011, we signed a settlement agreement in State A that stated in the event of divorce, my income/property earned during marriage is mine (as are my debt) and same applies to him. Long story short, I'd like to find out where I should be filing divorce and does this mean I'll have to pay spousal support simply because I'm making more money than he is, even though he is capable of supporting himself and have been doing so since 2011. And I picked State B as the state since that was the most recent state I lived in, although I'm now living overseas again. Thanks.