Friends with benefits

i’ve known this lad for almost a year and he’s my best mate. i’ve fancied him for a few months and he asked me on a date in november. we dated for about a month but he lost feelings and admitted that he wasn’t completely over his ex. we both spoke about it and we valued each other too much to let the relationship cause us to lose each other so we decided to stay mates. we bounced back really well, and are still as close as we were before we got together, maybe even closer.
on friday we both got really drunk and i kissed him not realising what i was doing until it was too late. he kissed me back for about a minute but then stopped. i apologised and it was a bit awkward for a minute but then he started touching me up and we ended up kissing again and it escalated pretty fast.
we spoke about it the day after and both agreed that it meant nothing but wouldn’t mind if it happened again so we we’re now basically friends with benefits.
since being drunk i’ve seen him again and we went out with all our mates. people kept asking if we were back together because i was sitting on his lap and we were both a bit flirty but we just told them that we’re just friends. he ended up coming back to mine and i’m sure you can guess what happened there.
i like the way things are now, i got my best friend back and the bonus of everything going on in the bedroom. he still protects me like we’re in a relationship and i find it exciting to “sneek around”. but in just scared of something going wrong because of my anxiety and mental health issues. i know i should have nothing to be worried about because no matter what state me and him are we just work, we’ve never argued, we’re both really open with each of other and there’s never been any problems. i just don’t know if being fwb with him is going to end up hurting me in the future like if he gets into a new relationship.
Achieve your health goals from period to parenting.