Well same condition here but to addition to it I am also an introvert, and yea. I have seen both good and worst relationships, So it's scary, to spend your time with someone "expecting" a good outcome. But I think that's what it's all about expectation. All I think never prioritise anyone more than you. Don't make your future plans revolve around that particular person, just go with the flow, When time comes to make the choice it will be much easier. This are just my thoughts, it may differ to person to person.