Hi .HowdyHeyImMax.
I'm afraid I cannot be of help there. However, if your friend frequents ImgFlip then he will most likely see your post. And, even if he continues to resist friendship with you, he will at least see that you have a concern for him with the meme you have just posted.
As for his suicidal state, all we could do is pray that someone will reach out to him, or that he will find strength to endure.