Thanks a bunch guys and/ or gals! Some good suggestions in there.
So far we have tried a few different things. But it's gotten to the point where we don't think he is interested in playing with us at all. Mainly because he doesn't really know me that well. And while he is friends with others in the group he isn't BEST friends with them. So therefore feels no obligation.
The 4 other players are quite keen and turn up pretty much every time. Some will turn up even if only for an hour before having to leave. In that case we assume their character is there and continue on playing.
Other strategies we've tried are:
-Allowing someone else to play as his character. Which is a big no-no in some circles I guess but the person taking over hadn't played before and it made for a good introduction.
-Not there, character's not there. No play No XP. Only just tried this after my mini-tantrum. Caved after a week though.
-Assuming the character IS there, but is feeling ill. Fight their own monsters but we have to use our imaginations!
-Once I made up a seperate encounter so the missing player (who joined us later) could make up the XP the rest of the crew gained. This was good as the player felt like his character was badass taking out a 10 man squad of minions solo. It was well and truly one sided but he gets +9 to his attacks. One hit, one kill. Halfing rogues FTW I guess!
The gang can handle the encounters without him. They did so with only 3 of 5 players last session with no adjustment to monsters. So we'll continue on. I guess I will let the problem player know that if he wants to rejoin the party at any time he can. He just needs to get his
sorted.
We are all of us new to the game as well. So I guess it may not have been to his liking. Most of us seem to enjoy it (or say so at least) and come across quite keen. Just a shame really as his character had some great potential.
I could try and be a better DM. But that will come with time, hopefully.
You guys are great btw. Helping out newbie DMs like me! Without your collective knowledge I'd be absolutely useless running a game.
Cheers!