I don't think you're over-reacting fwiw - one of mine is driving me bonkers lately. I swear she's actually 'in love' with me - I can't move without her shadowing me, if I'm in the kitchen she sits on the nearest available surface and reaches out to me, if I sit down she's straight up, rubbing herself over me, or (sounds weird I know) putting her 'arm' across me/holding onto me whilst staring at me - for hours. This can be quite cute, say, a few days now and again, but she's at it all the bloody time and it does piss me right off sometimes