try caring about what the other person could for you you (making you feel good, doing things that you like, etc), then maintain that connection by convincing them that they benefit from it too
even if feigning interest is bothersome, sometimes people will actively try to do things for you to gain your attention without much effort on your part
this is all assuming that you even want a relationship, because if you don’t, why even think about something that you don’t want? you were never “supposed” to have anything