Hi crimples, it is boumd to feel a bit funny, but if you split up amicably there can be no harm in it, whatever happened was in the past and that person will forever be a part of your life and what makes you who you are, you are not being neurotic just cautious, which is natural,
I am meeting my first ever girlfriend later this year, I haven't seen her for about 35 years, she is alovely lady but when we split we were very young and it would never have worked, but she will always be special, you can at least chat about how things have turned out and if you don't get on you need never meet again, Ray