We don't live together, although we have plans for upcoming months. That's why it's really important for me to figure out whether to stay before further enmeshment.
We've been together for 18 months and I became aware of the lies pretty immediately as some of them were, you know, easily provable otherwise!
It does worry me that he is indeed a pathological liar. He doesn't have many friends so not sure how much of the version he presented to me is true.