So the only negative information you have about Jake is from Brad, a guy who went home alone rather than go to a party. And your own observations are that Jake is interesting to you and has friends who accompany him on trips. Seems like Brad is projecting because he feels like a loser and Jake is actually awesome.
Think long and hard if this is the kind of partner you want, sweetheart.
You may love her, but that doesn't mean she's right, nor does it mean she's right for you. You're NOT being selfish, but she sure the hell is.
So the only negative information you have about Jake is from Brad, a guy who went home alone rather than go to a party. And your own observations are that Jake is interesting to you and has friends who accompany him on trips. Seems like Brad is projecting because he feels like a loser and Jake is actually awesome.