To me it's almost like they're rubbing it in that they have a significant other, and I hate that. >.>

I'm single right now, and I'm kinda stuck that way because of how hard I have to work for school--I don't need to be hearing about your perfect boy/girlfriend. It's not so much jealousy as it is: stfu and let me study. XD But it also makes me feel as though those people don't have a life, and since I'm trying to get one through all my schooling, I don't want to listen to how you were skipping classes to get ready for a date.

Even if I am in a relationship when said irritating person comes along, them blathering on about their SO just makes me feel like they're saying theirs is better. Seriously--there are better topics.