first I am reading ur partnet's chart.
In men venus/moon are considered to read relationship with opposite sex.
In ur partner's chart 7th house is tarus and moon/venus placed in 7th house. strong indications that his partner may have traits of tarus or her sun sign would be tarus.
In ur chart.
In girls's chart, sun mars are considered for opposition sex relationship and venus is the natural ruler of 2nd/7th and it is planet of love and money so I also consider venus for love in girl's chart as well.
ur 7th house is heavy capricorn which is making trine to ur SUN/venus in tarus so in ur chart strong indications are that ur partner may have traits of capricorn and tarus or his sun sign would be tarus or capricorn.
but ur chart shows some instability in partnership/relationship?