Let me first start out by saying how sorry I am for the loss of your husband. Life is too short.. it really is. When I read that, I got tears because it's hard to live without someone that you've loved.
A saying that I always liked, but never really 100% could grasp (of course, because we are humans and LIFE is all we know) that we should not feel sad when our loved ones leave the physical world because they are with God, and if we cry and feel bad for ourselves that they are no longer with us, we are being selfish because they were never meant to stay in the physical world in the first place.
It's true.... we are not promised forever. No one is. I was just thinking about that when I was in the kitchen.
I know your husband is up in Heaven and I love how you put that! Our loved ones really do become our angels in the sky.
For advice, I would just say be yourself and don't get too attached. I've never done online dating so I can't tell you - but it does freak me out too. You are not alone. It is hard to meet the right person, no matter if you're 22 or 72.
I think of it as more or less, a way to see new people. Instead of meeting this person at Lowe's or the grocery store, we can see them here and the best part is most share the same values we so desire in a partner!
All I know is you have plenty of llving left and remember that you already ARE God's wish for you. He took you down this path and you are right where you are supposed to be!
God wants you to be happy, and if you keep praying to meet someone - Maybe you will meet them on here and maybe you will not - but God will not let you down.