Welcome!
MrFriendly is banned from this thread until the new update comes out but you're right, he is usually very helpful (albeit a bit grumpy sometimes

)
I am eager to try out the new update once it gets released.
Unlike many commenters I do not find MC a whining kid running away from his problems.
During the last 5 years being raised by his father (I know, not biological, but loving and that counts) MC has grown up to a reasonable young man. He knows how and when to fight (and when not to), and is also confident enough with women.
Of course, there are still many things he could not be prepared for.
(Not to mention he still has many flaws: e.g. he is incapable of closing the doors.)
He does not hold the grudge against Erynn as much as rather he is aware of the fact that he is vulnerable to her. There always exist people who have the upper hand no matter what. Therefore he is quite hesitant to meet her again.
(This is exactly, what he tells Lexi on the plane, that's why I can not really blame her for seizing the day.)
Also, when he leaves his mother, he does what REAL MEN do since the stone age: goes into his cave to collect his thoughts and he will hopefully come out with the solution (or Dylan).