Improper Format Help me please :(

http://steamcommunity.com/profiles/76561198069767664/
this guy talk very friendly..... and i am new to this item think and he lore me to the trade item he keep me asking me about trade.....spamming time to time and i trade with him...... and he asked me tegu courior, clinkz glove and head,faceless void bracer for tide common set ,invoker 3 items and 2 items of omninight.... after some weeks when i was checking my other friends inventory i saw so many common couriors and i asked trade one couiror with me cause idont knw what is common and mythical so he answer he dont want to because he is collectiing it for trading with tegu courior ... so i asked him about items and he said my trade was unfair so now i asked that player to give back my items and take his items but he said no please help me i want my courior back ... ;(

thank you man yeah he was that one

Victim?
|steamID: [iB]icE
|steamID32: STEAM_0:1:43439844
|steamID64: http://steamcommunity.com/profiles/76561198047145417
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198047145417


Scammer:
|steamID: yanix
|steamID32: STEAM_0:0:54750968
|steamID64: http://steamcommunity.com/profiles/76561198069767664
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198069767664

here is the history of inventory :-

We met at the game... he was very friendly so we added each other and after some days he keep spamming me wanna trade ???? i said no first..... as a dont know about items that much he said me that hey icE give me your Tegu courior and i will give you tide set and i was like really exited ( he send this me when i was in game) and we trade... our items and later on he also gave me Holy words of the Hierophant...... he was spamming lol and smiley face frequently......... and at last he said thanks man your a good trade.......

this is that shortcut of history of inventory

And yesterday i asked him to give it back in nice way but he said no so now i'm here .............
He blocked all the communication to me