Often when couples have gone through or are going through some bumpy spots in their relationship, things tend to get serious. It could be that there is a tremendous amount of tension or perhaps they are not sure what to say. Regardless of the reason, learn to lighten up. Do not take every comment, glance, or movement as a serious problem. If your mate makes a mistake, which you both will, let it go, or if appropriate, laugh about it. If you make a mistake, do not be afraid to poke fun at yourself. This will automatically start the process of tension breaking.