Thanks for taking the time to reply!

I totally agree that I need to sort out my insecurity issues before getting into a serious relationship. It is because I know this that I am holding back and want to "run away".

Also, the reason why I mentioned that everyone in my workplace is married was to explain that I have had very little opportunity to meet single people my age and hence my lack of experience. I definitely do not feel any pressure to rush into a relationship because of my colleagues' relationship statuses. I actually want to be intimate with him for the simply because I like him. If he took the lead I think that would make things a whole lot easier!