7th lord gone into 12th is a problem, one has to be careful and see

Position (kendra, tikona, rashi sandhi, bhav sandhi) and condition of 7th lord dispositor, and 7th lord

Position and condition of venus and its dispositor

Lots of people ignore sun

Lagna venus and moon are commonly used

Navamsha chart can be used independently

K

Venus in Gemini lacks commitment

exaltation of Venus is not considered good, highly exaltation - having a good marriage is not in destiny

Venus is exalted here

Venus is expectd by Mars and lord of 6th is also not good

Rahu is especting 7th lord and 7th house

Lets see from Moon

7th from MOon is sun and mercury 

merury is the 

Navamsha - 8th lord in ascendant

7th lord

within a fortnight - Moola shanti propitiation is done

delay in marriage is social construct