Well, first for the outside relationships. Since none of our families were JWs, yeah, there's less strain now that my (fundamentalist Christian) parents aren't upset that we're in a cult and going to hell (we're still going to hell but at least we're not arguing over religious doctrine). I feel bad for all those years we didn't attend my grandma's holiday meals (we came later because I just couldn't totally hurt her feelings, but I wish we'd been there for the whole thing).
As for the marriage...well, before we were ever JWs we had our problems. Hubby is from an old-style German American farm family where the women wait on the men hand and foot. He can be a bossy and domineering little fart, as well as passive-aggressive. Then he became a JW...and a few years later I did. I'm amazed now we didn't get divorced. He can be snide and hateful when he's convinced he's right and you're wrong.
It took us years to get our equilibrium back to "normal". What's normal for us is certainly not acceptable for the JWs, and having someone else tell us how our relationship should work was disastrous. I have to meet him head-on or he tries to bulldoze me completely (he has very little empathy, and can be a selfish sh*t sometimes). People think I'm a dragon lady if they don't realize how I have to stand up for myself.
Actually, what I think saved our relationship (so far ) was when I started telling him - "What makes you think I give a F^#% what you think???" and meaning it! Sounds bizarre, I know, but he needed to be shaken up. Being, in no uncertain terms, willing to do what I wanted and live my own life without having to ask his permission or even care if we were together, I think made him realize that if he wanted to keep the relationship he needed to start taking me into consideration sometimes.
He doesn't like what movie I want to go see? Fine, I go by myself and he can sit home by himself. I've had too many years of not getting to do what I wanted because he didn't want to (or dragging him along and listen to him complain until he ruined it). It shocked the crap out of him the first time I said, "Fine. I'll just go by myself and do whatever. I'd rather you stay home than go and complain and ruin it for me." Now we do things on our own that we enjoy, but we do things together because we want to and enjoy them. It's not perfect but it's much healthier than never getting to do what I want and being very resentful.