How does Jesus expect us to love our enemies?

According to Mat 5:44, Jesus tells us to love our enemies, but how does he expect us to do that? It's either you love your enemy with a false love (because no one can honestly love that which one despises) or not see your enemy as your enemy. If it's the latter, then does this mean that Jesus wants me to have frenemies (friends that are really my enemies) and not see them as frenemies but as friends? If so, then why wasn't Jesus friends with the Pharisees?