If you have certain lines that the other person shouldn't cross, voice it out. If you need space, you need to demand it before this becomes a problem. Be forthright in having such conversations and keep reminding them or talking to get things corrected. In married life, there isn't a substitute for talking to each other. Nothing works better.
Working out things when conflicts arises is what makes a good marriage. Decide about this and make sure you give the time to workout stuff that icks you both. Give feedback and compliments about the progress made. Good or bad when expressed makes a difference instead of not knowing at all. Never hesitate doing such things. Small things matter.
Talking is completely different from arguing. Stop aruging and start talking about your issues. Arugments can go on forever so avoid that and talk about fixing problems and finding a solution. Solution is not to shut the other person but a concrete factual and measurable solution that will put a stop to perplexions.
If you do not communicate well, please forget the art of living together. Talk. If you are expressive, it is great. Talk. If you are reserved, it is still ok. Talk more!. Always be ready to talk about something and try not to gulp words ever. This becomes a serious problem after sometime. Talk about differences without supressing it. It is important that you talk even if you hate doing it and even if you think it never works out.
Write down your feelings so you can clearly articulate and understand them yourself before you approach your spouse to discuss. Try to approach your spouse when you aren't feeling angry or upset in any way. Wait until you cool down, and then approach your spouse with the aim of reconciling, not of winning the argument.
As awkward as it may sound, role playing is a good method of addressing communication problems in a marriage. Find a trusted friend to “stand-in” for your partner. With the friend in place, practice articulating marital issues,concerns, and opportunities using the “I first” language. Have the stand-in voice issues, opportunities, and concerns as well, and practice receiving this information using responses that begin with, “I hear you saying…” “I first” approaches reduce the risk of blaming, name calling, and the like. If you or your partner uses belittling and intimidation to communicate, you have bigger problems than a temporary inability to express joy and frustration.