Need some advice plz.

I have this friend who is a bit controling, when I'm with my other friends and my partner this so called friend does not like it cause I'm hanging out with other friends. So Iv backed away from this so call friend and Iv blocked them on my Facebook and my mobile but they have a a house phone that is privet and they keep ringing me off privet number to imtadimate me. What do I do. They only want to hang out with me when they money. Am I doing the right thing with backing away and not having anything to do with them. I know I'm doing the right thing I'm just scared with the out come with the imtamideing and stuff.