hi well come to hcm.
possibility can not be ruled out because it can remain asymptomatic as well.since
both of you had sex relation for pretty long time there are all the chances of he
being getting infected.Who got from whom is difficult to decide but both of you
should get tested for gonorrhea
,as well syphliss as well becuse persion with chlamidia
infectio are likely to get aswell. Thanks