Explain this passage

[hp_fan_2008]

No: HPFGUIDX 180689

potioncat:
> I have to wonder again, if the Hat had offered Gryffindor to Severus,
> if he would have taken it? Would Lily being there be enough, or would
> James being there have been too much?

Elihu:
I think that Snape's and James's  mutual disliking was something which
developed over time. Just like Harry and Ron ended up liking Hermione,
Snape could have ended up liking James. In stead, Snape spent his time
making friends with the wrong kind of people, and while it took Lily
nearly 5 years to end her love for Snape, James found it very easy to
dislike him. If Snape had been sorted into Gryffindor, he probably
would have made friends with the same kids as Lily, and his
relationship with James would have probably ended up better.