I gave up my vocation to the church and walked away from it because I couldn't have been able to act according to my conscience on this issue. Plenty of priests have stuck it out in the hope that one day the church will change its mind and celebrate marriage equality. Some have had to leave at personal cost. Walking away from the church was like walking away from a marriage for me (I know, I've done both).
Well, there are some things in Anglicanism that I like, but in relation to gays and lesbians, there seems to be this moral vileness, which I still find surprising. I know that there are various reasons offered for it, for example, that it's Biblical, or that it's a way of staying connected with the African churches, but really, in the face of the hurt caused to LGBT people, well, the C of E place themselves outside civilized values. What's odd is that they can't see this self-caused damage.