I've come to the conclusion I haven't got the slightest idea on how to approach this issue kindly and calmly with my SO.   These are the premises: 1) she has no close friends. She meets her "closest" one once in a while though; 2) I have two close friends (Tom and Jerry) who have made the introduction, and we often hang out with them and other few people; 3) The GF would happily dedicate all of her time to being with me, but I feel restrained since I'd feel bad...