the label for required fields adds a span tag with a asterisk in it:
<label for="First_Name" class="sublabel" > First Name:<span class="requiredIndicator"> *</span></label>
for the not required fields, you'll need to add the same span, but empty:
<label for=" FICO Credit Score:" class="sublabel" > FICO Credit Score: Name:<span class="requiredIndicator"> </span></label>
when you run the form builder wizard, in the design settings, you can specify the width for the labels. It is wrapping to a new line because the width is set to narrow to fit your full label on one line.