7th Cuspal Sublord is Saturn(natural karaka of delay). Saturn is in pushya nakshtra and in sub division of venus.
Saturn is occupying 12th and is lord of 7th and 8th
Pushya nakshtra is ruled by Saturn. Venus is occupying 2nd and lord of 4th and 11th.
So Saturn is significator of 12th,7th and 8th and is connected to 2nd,4th and 11th.
For Marriage we consider 7,2,11, hence marriage is promised, however saturn is also significator of 8th and 12th(conflict in marriage) ( difficulties in married life(4,8,12)
There is heavy influence of Saturn as the 7th Cusp falls in capricorn ruled by Saturn. It's sublord is also saturn and saturn is self star planet. This indicates that if at all the marriage happens then the partner will be aged.
When this will happen... for this joint significators of 2nd,7th and 11th house needs to be seen.
Joint Significator of 2nd/7th/11th
2nd --- ven,ket,sun
Venus is untenanted planet, it is strong significator of 10th cusp and 12th cusp. It's sublord Mercury does not signify either 2,7th or 11th
Ket is untenanted planet and is significator of 2nd house. It's starlord Sun is also significator of 2nd and it's sublord mar is significator of 11th. So Ketu will give marriage result.
Sun is signficator of 2nd, it's starlord jupiter does not signify mariage related house. So Jupiter will not give marriage results.
Saturn is significator of 7th and is self star planet. It's sublord venus is significator of 11th. So Saturn will give marriage results. Also Saturn is cuspal sublord of 7th and 11th.
Mar's starlord rahu is in conjunction with sun. Sun is lord of 2nd, however mars sublord jupiter does not signify 2 or 7 or 11. So Mar even though it's significator of 11th will not give marriage results.
So Saturn and Ketu are the two planets which will actually deliver marriage results.
Ketu is the agent of Mars(been deposited in aries sign) and Sun(sun aspects ketu). So Ketu can deliver results through it's agent as well.
if I use ruling planets at my place 30th March, 2020, 3.28 pm, birmingham, alabama --- then
lagna starlord - Ketu
lagna signlord - sun
moon starlord - mars
moon signlord - venus
daylord - moon.
Ketu, Sun and Mars are appearing in the ruling planet as well as connected with Marriage related house. Current Mahadasa is of Jupiter which does not signify marriage and is also connected with ruling planet. Next is Saturn staring from 2025. Saturn is not appearing in ruling planet, however it is strong significator of 7th house. So Saturn Dasa --- Ketu Bhukti--- Sun Antara ---nov 2031
At this time you'll be 56 years.... if we consider Sthan/kala/patra... then in my opinion marriage does not seems to be destine... even though there is promise of marriage in the chart.
Why the marriage is delayed.... saturn/moon connection. Moon is is in capricorn sign and Saturn is in cancer sign.