  We study inter-skyrmion interactions and stable spin configurations in a 2D
chiral magnet with in-plane anisotropies of a tilted magnetic field and the
magneto-crystalline anisotropy on a (011) thin film. We find that in both cases
a small deformation of a skyrmion shape makes the inter-skyrmion interaction
anisotropic, and that the skyrmions are weakly bounded along a certain
direction due to an emergent attractive interaction. Furthermore, when the
magneto-crystalline anisotropy is comparable to the Zeeman energy, skyrmions
embedded in a uniform magnetization are tightly bound by creating a magnetic
domain between them. The formation of the magnetic domain, and thus the
strength of the inter-skyrmion interaction, can be controlled by the direction
of an external magnetic field. The anisotropic interaction also affects the
skyrmion alignment in the skyrmion crystal (SkX) phase. By employing the Monte
Carlo simulation and the micromagnetic simulation, we obtain an elongated
triangular lattice structure in the SkX phase. In particular, in the presence
of a strong magneto-crystalline anisotropy, magnetic domains appear in the
background of the lattice structure, and bimerons aligned on the domain walls
form an elongated triangular lattice. We also find a parameter region that the
SkX phase is stabilized due to the inter-skyrmion attraction.
