Welcome Paula. As you didnt get baptised you are all good and in the clear, if any decide to shun you that is their personal cult induced choice, but most wont do so as it is not a requirement as you didnt technically become a JW. If you do become obviously anti-witness then the rest may do so as well, but otherwise not.
Be thankful you got off lightly...
Read up here for the proof it's just another cult and based on false idea and suppositions right from the start. that doesnt mean EVERYTHING about them is wrong mind, but if C.T.Russel cant even get his chronology right that the whole thing is based around then it goes without saying it's not Gods organisaction like they keep saying they are. Otherwise you may doubt your decision like lots of JWs do when they leave many even still believing it is the "Truth". That just makes it much harder to deal with.
Rasie your head up girl, you are the one who should be looking at them with pity or disdain, not the other way around. Knowledge is power, right?
Yes memorial is coming and they want bums on seats to get the numbers up to record levels, so just be polite and say you cant make it, or you'd rather not. NO EXCUSES ARE REQUIRED! if they want a reason just say Sorry thats personal information. Be brave.