Tā zhè cì bú gòu péngyou, yǒushì shí gēnběn liánxì bu shàng.
He didn't act like a true friend this time, couldn't reach him at all when I needed him.
Tips
memory
Literally 'enough friend,' i.e. 'friend enough to step up.' 够 here means 'measures up to, qualifies as,' so 够朋友 = 'qualifies as a friend in deed, not just name.'
register
Colloquial and warm. Often paired with 真 ('really') as 真够朋友 to praise someone, or negated as 不够朋友 to call out flaky behavior.
