I don't think the lyrics are that terribly different. If you're talking about the Blink influence, it's always been there. When I did an "official" interview with Chase for the first time (this is getting to be 5 years ago) he admitted that Blink was pretty much the reason LWL existed. And since I still have that file on my computer, I'll copy and paste his answer:
It’s not a huge secret how Living With Lions came to be so I thought maybe we could go back a bit further. What made you pick up the guitar in the first place?
Chase: I remember getting the first Blink-182 album, or the first Blink-182 album I’d ever heard which was Enema of the State. That’s kinda sad because all the hardcore Blink fans first listened to Dude Ranch, which is probably my favourite record of theirs. But anyway, as soon as I heard that album for some reason I wanted to play in a band. I had to learn how to play guitar so I got my first guitar and I remember it was a piece of crap. I started a band with some friends and we were like a Blink-182 wannabe band who covered a bunch of Blink-182 songs. So yeah, that was basically how it started. I think I was in grade 8 when that came about so it was a long time ago but yeah, basically Blink-182 was the reason.