BF said he loved me for the first time during sex?

kaylaS91
We've been together officially for 5 1/2 months, though know each other for a few years and have been hanging out multiple times a week for a year or so. Last night, he took me out for dinner & icecream afterwards, insisting on paying despite it being his birthday because he 'wanted to take me out and treat me to something special'. Afterwards, we went to his place to watch a movie which pretty much means to sleep together.

He was really passionate, though made it nice and slow because he knows that's how I like it best. Many times throughout the night he'd asks me to kiss him while having sex, tell me I'm gorgeous, etc.. We've been sleeping together for months. At one point around the middle of intercourse, he was on top and sort of muttered under his breath 'I love you'. Neither of us have said that yet. I heard it, but didn't' want to call him on it in case it was a slip of the tongue so I just pretended I didn't hear.

My question is, could him saying that mean he actually loves me?
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Should I bring it up with him or dismiss it as just a slip of the tongue?
BF said he loved me for the first time during sex?
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