oh, he was going to be suspended on Friday? then the timings at least make sense, I did wonder why they didn't wait until she'd finished this year and left the school, but if he was about to lose it all (and his wife would have to find out why he was suspsended, so his affair would come out), the 'running away rather than face the music' timing does start to make a little (twisted) sense.
It does seem more of a panic then, "I won't go to work and be told what I'm doing is wrong, I won't face my wife and explain I've had an affair and am about to lose my job, I'll just focus on the one person who thinks I'm amazing and run away from all my problems"
I really hope he comes to his senses, but it does sound like he's not really a "face the music" type. That doesn't bode well for this poor child mixed up in an adult's "life implosion". Even if they are found in the next few days, she can hardly return to the same school, so she's going to have to do her GCSEs elsewhere, under a cloud, dealing with the emotional truama of a 'boyfriend' either on the run or facing criminal proceedings.
This selfish weak man has distroyed both his wife and his 'child girlfriend' - he's ruined so many lives but I bet a pound to a dozen, he's currently feeling sorry for himself and that he's the victim.