Love isn't a desicion, its a feeling.

In Ariadne, we can see how sometimes, the person you love isn't the right person for you and vice versa. There's a quote that says " if we could decide who we loved, it would be much simpler, but less magical." There are times when we hope that the person we love loves us back, but life knows how to make things work and everything happens for a reason.
Things start to change when the person who you love takes advantage. Then, not only do you feel pain, you also feel melancholy. This is what happend to Ariadne- "...Ariadne, on waking and finding herself deserted, abandoned herself to grief."
We can also see some human traits in the following quote: "But Venus took pity on her, and consoled her with the promise that she should have an immortal lover, instead of the mortal one she had lost." We see how the fact that one lover is mortal and the other is inmortal changes the whole situation. "Mortal" is seen as inferior and "inmortal" is the automatic translation of "God". Even though an inmortal is a "better catch" for anybody, she loves Theseus, the mortal and can't love Baccus. After all, you don't chose who you end up loving.