Yea, think thats the last resort.. like I said, he wants to keep in contact with her, but at the moment she's a bit pissed off/upset about things finishing so anytime he tries to talk to her or she sends him messages then its the same old stuff about wanting him back etc that he gets.
So his plan is to block her off for a bit..
..then unblock her, send a test message to see if she's calmed down and moved on..
..then if she's still a bit of a loony, reblock. If she's not, then they can chat and be friends hopefully.
Cheers,
Grant