Venus is not only weak but surrounded by malefic planets mars,ketu and enemy sun..
How ever venus gets directional strength due to rahu in house 4.
Sun is strongest planet in house 10.
Due to conjunction with venus its period can give marriage.
7th lord mercury is in rahu star who star lord of 7th house
Venus is in moon star, and sub sub.currently you are in moon MD and Jupiter AD till march 2019. Due to venus getting same guna of rajasa and directional strength it can give marroiage.
There are chances of marriage in 2018 specially march to june 2018 and later july to oct 2018.