would you lend boyfriend money?

No. Don't do it. It'll put pressure on the relationship. You can give a gift, but don't loan money.

If someone is in a tight spot financially, he will be in a tight spot when he has to repay you as well. This will cause frustration on your part and guilt on his, which will result in him getting resentful and angry at you. Him being resentful and angry will puzzle you as you will think you helped him, which will make you resentful and angry towards him.

He will not repay it. You will not be happy. He will not be happy.

No.
I would give the money without any expectations- in relation to the bf, money or relationship.

NEVER EVER lend a partner, friend or relative any money.
Doing so only creates additional relationship pressures; feelings of obligation/resentment/embarassment/frustration or feeds a borrower perception of the lending partner as a means of accessing interest free overdrafts.

If you have complete trust in the other person, I don't see why not. Especially if the terms are laid out.

I was travelling with a friend and he lost his card. He could have called the bank and got a new one but I lent him £800 instead, and he repaid me the day after we got back home. I had no issue with it because I trusted him, and it didn't put a strain on our friendship. However, if there is any ounce of doubt, I would advise OP not to.

Boyfriend of 4 months is in a tight situation financially at no fault of his own. We are both at uni, his about to struggle to get by and at risk of having to leave uni. Me on the other hand, am very financially independent due to my background and have savings. I've lent money to family many of times, I only lend what I know I can afford. My bf, didn't specifically ask to borrow money and hates it if I do. But without my help his basically screwed. His actively looking for a job and got interviews lined up so no doubt about it he would repay me. Really I know its dumb to, but I always am as I've never left myself short with money, and I hate seeing poeple get stuck because of issues out of their hand. Should I, how much is too much?

I'd agree but seem to not be able to not help myself. I've had experience lending money before to relatives, im careful to not leave myself short. if he wasn't proactive about a job I wouldn't consider and I'm sure he will repay me as soon as. I come from a family that struggled with money so I hate seeing people go thro it, probably why im good i can't help but to help- the amount his asking won't really impact me.