Dear [Partner's Name],

I am thrilled to invite you to a fabulous party that we are hosting on [date] at [location]. The theme for the party is [theme], and we promise it will be a night to remember.

We have planned a wonderful evening filled with good food, drinks, music, and of course, a special celebration for us. It will be a great opportunity for us to spend some quality time together and create new memories.

The party will start at [start time] and will go on until [end time]. Please feel free to arrive at [arrival time] if you can. We would be delighted to see you and share this special moment with you.

No need to worry about a gift, your presence would be the greatest present for us. If you could let us know if you will be able to attend, we would be very grateful.

We are looking forward to your positive response and hope to see you at the party.

With love,

[Your Name]

[Date]