Relationships are very interesting and cool when they are healthy and the following are the things that determine a healthy relationship.
1.consider your partners advice:most unhealthy relationships there is always one partner who just wants to do what they think is right without considering the partners views on the issue or even worse both parties can be the same hence these two will always argue so always take time to see your partners interests in most things before you make a final decision over anything.
2.respect your partner : respecting our partners doesn't mean we have to call them or address them as Mr ..... Or miss..... To show we respect them ,no ! Respecting our partners mean we should always put them as our first priority .
3.always be calm when addressing: sometimes there could be times when you're not happy with what your partner is doing,do don't rush to anger and talking any how about it but take a deep breath and ask why your partner is doing so and see if it makes sense or not and when u find out why also give reasons why u think it's wrong or what you prefer like that you will maintain the peace and also the problem.
4.appreciate: when ever your partner improves in some areas or does something nice for u always take time to say thank you and commend their efforts and good work to help them keep moving.
Express yourself:mostly couples like keeping things to the selves to avoid drama but that's not the way to go always talk about what's bothering you cause it's healthy if u argue about it it's fine cause at the end of the day both parties Kno how the feel about the matter at hand.