I have been single for the last six months, but before that I was in a relationship with an MtF. It was a crazy stressful time, and I wish we had met later in life and transition, because I think It might have made things a little easier.
I would like to be in a relationship, but I know I have lots of things to work out in my life before I try again. I don't think I would ever get married though. I see marriage as a political and religious mess, and want nothing to do with either. Doesn't mean I woulnd't want to live with someone in a committed relationship though.
Kids though... maybe. It would depend on the situation. I could see my self adopting or fostering, or if a partner already had kids, but there is no way kids are coming out of me.