Relationships are complex entities, made up of a number of factors that all need to come together to make it work. While no two relationships are the same, they share some common factors that come together to help form a winning combination. Here are some of the factors that make a relationship:

Chemistry. This is probably the factor that differentiates a romantic relationship from a friendship more than anything else. Chemistry, physical attraction, lust or whatever you want to call it, is that extra spark that makes us attracted to our partners above anyone else. Chemistry can fade or intensify or change over the course of the relationship but it’s important that it’s there. Even if you’re part of a long-term relationship it’s still important to feel that spark for your partner.

Timing. There might be two people who would be perfect together in every way, but if the timing isn’t right the relationship may not ever get off the ground. Both people need to be available and in the right time at the right place so that they can come together to form a relationship.People are often not single at the same time and may be interested in each other for a while before a relationship can actually happen.

Openness. In addition to simple being available and being in the right place, both people need to be open to the relationship. If one person isn’t interested, doesn’t want a commitment, or simply doesn’t want to get involved with anyone, then the relationship won’t go anywhere. Both people need to be open to experiencing love and commitment in order for the relationship to move forward.

Trust. Relationships take more than two people liking each other or having fun together. They need to be able to trust each other and rely on each other. Trust is something that forms over time, so you need to invest in the early stages of the relationship before you can really tell if this is someone that you can trust your emotions with.

Willingness to make an effort. Relationships take commitment, time and energy and both people need to be able and willing to make this effort. The relationship won’t work if one person isn’t able or willing to put in the effort. One person can’t do all of the work in a relationship or they will burn out and come to resent the other person. Both people need to be in a place in their lives where they are willing to put the energy in to foster the relationship.

Bond. There is a special bond that exists between successful couples. It’s hard to define what it is, but there is something that they share between them that draws them together and brings them closer. Without that special bond you might have fun together or like each other, but the relationship won’t move forward to a closer, more intimate place.

Commitment. Both people need to have a desire to be together and commit to each other. If you want to date other people or aren’t ready to get tied down yet, you won’t be able to enjoy all of the benefits of being in a relationship and having a committed partner. While commitment takes away some of your freedom, it’s worth it when you find the right person.