Here is why many people find it impossible to love two partners at once:
Cultural norms and expectations: In many societies, the monogamous relationship model dominates. Society, family, and even cultural media form the expectation that love is a feeling that we “should” have for one person.

Jealousy and attachment: Love and attachment are closely related to jealousy. It is difficult to cope with this feeling when you love several people at the same time, since there is a fear of losing each of them.

Forms of love: Psychologists distinguish different types of love - for example, romantic love, friendly affection, and familial love. We can experience different types of love for different people, and this adds complexity. Feelings for two partners can be different in nature, but each of them can be real and meaningful.

Emotional involvement: Maintaining a full-fledged relationship with two people at once requires significant emotional resources, openness, and a willingness to communicate in complex ways. This is difficult and energy-consuming, especially if there is no honest and open dialogue in the relationship.

However, for some, loving two people is natural
Polynamory and relationships with several partners can be based on mutual love, respect, and honesty. In such cases, loving two people at the same time is not considered something “wrong” or impossible.
The choice is yours!