A-saying you don't get out much, makes you look like you have no life, have nothing to offer socially, a recluse, something must be wrong with you...don't do that. Make sure your life is full of hobbies, passions, activities and a few friends. No one wants to date someone that becomes their soul focus/life. That's unhealthy. Having a solid fulfilling life outside the relationship keeps things fresh and alive.
B-keep things light and positive, use some humour, stop over thinking.
C-looking for an activity for a date is a good thing. This is how they gauge compatibility which is very important for any future relationship.
D-she's not on the same page as you feelings wise. Carrying a torch...you will have to put the breaks on this and start at square one. Yes you are friends atm....you have a hill to climb...that's why we date. Spend time together and see if feelings grow. Her feelings need to grow, give her a break. Just the way things are, so slow your roll.