LTR stands for those three sometimes scary words: long term relationship. A long term relationship is one that has been around for kind of awhile! Some long term relationships lead to marriage, others stay together and then break up, but long term relationships are what most people hope for at least at some point in their lives.
In online dating, someone might use this acronym to tell you that they are in a long term relationship, but open to hooking up with others, or looking for someone to hook up with in their already established relationship making for a nice threesome or couple exchange. Someone also might be telling you that they are or are not looking for a long term relationship, which is always good to know when browsing profiles online.
Even if you?re looking for a hook up and not a long term relationship right now, you never know when you will meet the perfect person and the magic of love will smack you in the face. However, it?s best to be explicitly up front about what you are looking for, whether it is a one night stand or an LTR.