No they are not but Spongebob
Squarepants
keeps thinking they are!
Although Spongebob has many friends, his best friend is unarguably Patrick Star. His neighbor's name is Squidward Tentacles.
Squidward Tentacles
squidward,spongebob,sandy,krabs , and mermaid man and barnicle boy
Patrick Star. (And Squidward Tentacles, but Spongebob just thinks that, Squidward really hates him)
squidward tenticles
''Giant Squidward"
In the episode "Fools in April", Squidward was a jerk. He fool Spongebob when they both are at work. When Spongebob was at home, he opens the door for Squidward. Squidward tries to apologize to Spongebob to what had been done in the krusty krab and the word that Squidward can't say is sorry.
No
Sandy, SpongeBob, Squidward & Patrick
I think they do because in one of the episodes he said... spongebob-Bye Squidward... Bye Mr. Krabs.......Bye squidward Patrick- You said Bye squidward 2 times Spongebob- I LIKE Squidward So this is why I think spongebob likes Squidward... i think he really does like spongebob but he is anoyying so he gets angry and spongebob really likes him ! he also calls him a hunk on the episode where sqwidward becomes handsome
Well, considering that Squidward is so self-centered, probably not. It is most likely that Squidward is not in love with Sandy because he thinks that he is the best and all of that. And, he usually hates all of SpongeBob's friends. And, it is said from many resources, that there will be an upcoming episode that Sandy and SpongeBob admit that they both like each other. So, I don't think that Squidward will be getting into SpongeBob and Sandy's upcoming relationship.
The main characters of Spongebob Squarepants are Spongebob Squarepants, Patrick Star, Eugene H. Krabs, Squidward Q. Tentacles, Sandra "Sandy" Cheeks, Sheldon J. Plankton, and Gary the snail. Spongebob Squarepants is the primary character that the show is centered on while Plankton is the main antagonist who plots against the Krusty Krab which Eugene Krabs owns. Squidward is Spongebob's neighbor and co-worker. Patrick and Sandy are Spongebob's best friends.