Even if Islam allows it, It does nt mean it has to be done. Just because you "feel" like it, does not make it the right option.

Islam allows up to four wives, but there are very strict guidelines. Do you understand those and can you comply with the?

Its very easy to say "I feel like doing this", but as an adult you haveto look at the conequences - on your wife, your children (if any) and the whole family.