If I marry will my new spouse or I lose our SS benefits?

No. Think of Social Security retirement like an annuity. You paid into Social Security, just like you would have if you had bought an annuity, and now you are collecting. Your marital status or income (except possibly work income) does not effect your payments. You possibly could even get more benefits as a spouse added to your own benefit, but you will not lose benefits. And congratulations in advance on your marriage!