Megatron

- He wrote you a beautiful poem

Starscream

- He hugged you from behind and whispered that he loved you in your ear

Soundwave

- He used emojis on his visor

Knockout

- He spelled in by using rose petals on your shared bed

Breakdown

- He made you a cake that said 'I love you' on the top

Dreadwing

- He told you while he took you on a flight

Predaking

- He told you while you both watched the sunrise

5t3v3/Steve

- He told you after he tried making dinner for you

Arachnid

- She told you after she was able to treat you to a spa