I really dunno what 2 say about this but if he wasnt there 4 u in ur times of trouble,when he really should have been,then he's not very supportive.The miscarriage was a really big thing 4 u 2 go through & u should have gone through it 2gether as a couple-if he couldnt call u when u had 2 go through a d&c then he obviously didnt care much.
I dont know how long u were with him but it sounds like u cared about him a lot once & clearly,it'll take some time getting used 2 him not being around.The most important thing is that u decide whats best 4 u in the long term.U say that u dont have desires to be with him so the only reason ur a bit down is because u were probably used to seeing him&all of a sudden,ur not.2 be honest,he doesnt sound 2 nice-a boyfriend should be there 4 u in the good and even more so in the bad & if he wasnt there,it shud show u 4 what he really was.
Im sure in time,u will realise that u need someone more supportive 2 help u when u r in times of need but u need 2 make the choice that will make u the happiest,
hope I helped in some way, best wishes,
liz :d