This horoscope shows that you are under Ketu mahadasha from 4/10/2014. This horoscope shows a long standing love affair or alot of affairs and a good opportunity for marriage was missed during Ket-Sun period of (1/5/2016 to 6/9/2016) as Sun is placed in nakshatra of Ketu with Venus as sublord.
Start of Venus mahadasa (20 years) from 4/10/2021 will open doors for marriage as Venus is 7th lord placed in 9th house. Strongest period for marriage seems to be Ven-Ven period especially from 4/10/2021 to 14/12/2022.
Good luck,
Astrologer Deepak