I am married, so I don't date, however I am blown away by the attention I receive from men now. I used to be invisible when I walked into places, but now I hold my head up high and strut! LOL
As you continue to lose weight, your self confidence will soar! It won't be long until women are coming up to you instead of you having to go to them. I would probably not mention the WLS until after I got to know the person really good and seen if things were gonna work out. That's just my opinion though.