Sometimes if one of you really dislikes the others friends it may cause friction; you may even find yourself rethinking your whole relationship with your partner. You may find yourself worrying that if these are the people they have shared values and interests with then they aren't going to go away - they are going to be part of your life as a couple forever.
In any relationship it is normal and healthy to want to pursue your own individual interests and spend time with people other than our partner. Often in the first phase of a relationship we ignore this fact and often spend more time alone as a couple than we do with friends; so we may not get to know our partners friends until later on in the relationship.
In time you should be able to balance being a person with your own friends and interests with being a partner. If your partner doesn't like your friends, you shouldn't necessarily have to give these friends up. You just need to figure out why your partner isn't too keen on them, and then agree on a compromise.
Being able to communicate honestly with your partner and telling them why you find some friends harder to get on with than others or why you feel threatened might be difficult at first but it's all a natural part of getting to know each other.
