Jesus told us in John 10:10 (Amplified) "The thief comes only in order to steal and kill and destroy. I came that they may have and enjoy life, and have it in abundance (to the full, till it overflows)." He said to "Seek FIRST His kingdom and His righteousness and then all these things would be added to you (Matthew 6:33)".
For you see, true happiness and contentment can never be found in people--your spouse, friend or anyone else. It is only found in walking closely to the Lord Jesus Christ and receiving all that His grace has already provided. That is truly what living an abundant life is all about!