Per Lds theology, the "Celestial Kingdom" is the highest kingdom of three supposed tiers...and ONLY those living in that kingdom live forever with Heavenly Father.
(The Middle tier can live with Jesus, but not Heavenly Father).
IoW, no marriage, no living forever with Heavenly Father, per Lds "prophet" Harold B. Lee.
Mormonism is a cult like the Moonies or Hare Krishna...it's just marketed better.
Mormons on these threads sometimes mock the claim that they believe that they will become gods, but this is from the BYU Encyclopedia of Mormonism.
“Latter-day Saints believe that those who attain the highest level in the Celestial Kingdom become gods, receive exaltation, and are joint heirs with Christ of all that the Father has” (cf. Rom. 8:14-17; D&C 76:50-70;84:33-39;132:19-25).
bfl