Board Thread:Arrow discussions/@comment-142.105.145.69-20150628204617/@comment-26568170-20150703060258

I can't see Oliver and Slade becoming friends again, Slade holds a lot of resentment towards Oliver Queen: 1. Slade had strong feelings for Shadow, however Shadow had feelings for Oliver (this was before the Mirakiru when Oliver was still a good friend of Slade's, this set the spark for his resentment, but not until after he came across the Mirakiru)

2. It's already been established that Slade had strong feelings for Shadow, so when he discovered that Oliver betrayed her love and killed her, he became emotionally unstable

3. Oliver lied countless times and made Slade under the impression someone else had killed Shadow, which was a betrayal of his trust

4. Oliver has tried countless times to reason with Slade, it seems that Oliver is open to becoming friends with Slade again, however Slade is not, and he is determined to bring Oliver down

5. Slade has seen Oliver lie to many other people, and has witnessed him firsthand lie to others, Slade sees Oliver as a dishonest man

6. In an attempt to kill Slade, Oliver took Slade's eye out with an arrow, Slade has become fond of the saying "an eye for an eye", Oliver caused his loved one (Shadow) pain, and caused Slade pain too. Slade sees justice in revenge, and desires to cause Oliver the same pain he felt.

So unfortunately, there will never be a Slade/Oliver duo except at the flashbacks of the island. They could've made a great duo, since Slade could charge at the main military force, while Oliver could handle any runners or far ranged attackers targeting Slade.